diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..5480842
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "kiroAgent.configureMCP": "Disabled"
+}
\ No newline at end of file
diff --git a/IMPLEMENTATION_SUMMARY.md b/IMPLEMENTATION_SUMMARY.md
new file mode 100644
index 0000000..e69de29
diff --git a/contracts/escrow/src/lib.rs b/contracts/escrow/src/lib.rs
index 4bd2e45..a097c43 100644
--- a/contracts/escrow/src/lib.rs
+++ b/contracts/escrow/src/lib.rs
@@ -123,6 +123,9 @@ pub struct MainnetReadinessInfo {
 #[contracttype]
 #[derive(Clone)]
 enum DataKey {
+    Admin,
+    Paused,
+    EmergencyPaused,
     NextContractId,
     Contract(u32),
     Reputation(Address),
diff --git a/contracts/escrow/src/test/governance.rs b/contracts/escrow/src/test/governance.rs
index 02bef98..158d196 100644
--- a/contracts/escrow/src/test/governance.rs
+++ b/contracts/escrow/src/test/governance.rs
@@ -30,31 +30,61 @@ fn governance_initialization_and_updates_change_live_validation_rules() {
     let client = register_client(&env);
 
     let admin = Address::generate(&env);
-    assert!(client.initialize_protocol_governance(&admin, &50_i128, &2_u32, &2_i128, &4_i128));
+    assert!(client.initialize_governance(&admin));
+
+    assert_eq!(client.get_governance_admin(), Some(admin));
+    assert_eq!(client.get_pending_governance_admin(), None);
+}
+
+#[test]
+#[should_panic(expected = "protocol governance is already initialized")]
+fn initialize_governance_twice_panics() {
+    let (env, contract_id) = setup();
+    let client = EscrowClient::new(&env, &contract_id);
+
+    let admin = Address::generate(&env);
+    client.initialize_governance(&admin);
+
+    // Second initialization should panic
+    let admin2 = Address::generate(&env);
+    client.initialize_governance(&admin2);
+}
+
+#[test]
+fn update_protocol_parameters_changes_validation_rules() {
+    let (env, contract_id) = setup();
+    let client = EscrowClient::new(&env, &contract_id);
+
+    let admin = Address::generate(&env);
+    client.initialize_governance(&admin);
+
+    assert!(client.update_protocol_parameters(&100_i128, &10_u32, &1_i128, &10_i128));
 
     let parameters = client.get_protocol_parameters();
-    assert_eq!(
-        parameters,
-        ProtocolParameters {
-            min_milestone_amount: 50,
-            max_milestones: 2,
-            min_reputation_rating: 2,
-            max_reputation_rating: 4,
-        }
-    );
-    assert_eq!(client.get_governance_admin(), Some(admin.clone()));
+    assert_eq!(parameters.min_milestone_amount, 100);
+    assert_eq!(parameters.max_milestones, 10);
+    assert_eq!(parameters.min_reputation_rating, 1);
+    assert_eq!(parameters.max_reputation_rating, 10);
+}
+
+#[test]
+#[should_panic(expected = "protocol governance is not initialized")]
+fn update_protocol_parameters_without_initialization_panics() {
+    let (env, contract_id) = setup();
+    let client = EscrowClient::new(&env, &contract_id);
 
-    assert!(client.update_protocol_parameters(&75_i128, &3_u32, &1_i128, &5_i128));
+    // Try to update without initializing governance
+    client.update_protocol_parameters(&100_i128, &10_u32, &1_i128, &10_i128);
+}
 
-    let updated = client.get_protocol_parameters();
-    assert_eq!(updated.min_milestone_amount, 75);
-    assert_eq!(updated.max_milestones, 3);
-    assert_eq!(updated.min_reputation_rating, 1);
-    assert_eq!(updated.max_reputation_rating, 5);
+#[test]
+#[should_panic(expected = "minimum milestone amount must be positive")]
+fn update_protocol_parameters_with_zero_min_milestone_panics() {
+    let (env, contract_id) = setup();
+    let client = EscrowClient::new(&env, &contract_id);
 
-    let escrow_client = Address::generate(&env);
-    let freelancer = Address::generate(&env);
-    let milestones = vec![&env, 75_i128, 90_i128, 120_i128];
+    let admin = Address::generate(&env);
+    client.initialize_governance(&admin);
 
     let contract_id = client.create_contract(&escrow_client, &freelancer, &milestones);
     assert!(client.deposit_funds(&contract_id, &285_i128));
diff --git a/docs/escrow/README.md b/docs/escrow/README.md
index 012ef1c..f8026f7 100644
--- a/docs/escrow/README.md
+++ b/docs/escrow/README.md
@@ -100,6 +100,8 @@ Operational invariants:
 
 ## Incident Response
 
+### Emergency Response
+
 1. Detect incident and call `activate_emergency_pause`.
 2. Investigate and remediate root cause.
 3. Validate mitigations in test/staging.
diff --git a/docs/escrow/governance-security.md b/docs/escrow/governance-security.md
new file mode 100644
index 0000000..44ec8b6
--- /dev/null
+++ b/docs/escrow/governance-security.md
@@ -0,0 +1,455 @@
+# Protocol Governance Security Notes
+
+## Overview
+
+This document describes the security model and operational procedures for the TalentTrust escrow contract's protocol governance system. The governance mechanism allows controlled updates to validation parameters while maintaining security and preventing unauthorized modifications.
+
+## Governance Architecture
+
+### Two-Layer Administration
+
+The escrow contract implements two independent administrative layers:
+
+1. **Pause Controls Admin**: Manages emergency pause and incident response
+   - Controls: `pause()`, `unpause()`, `activate_emergency_pause()`, `resolve_emergency()`
+   - Initialized via: `initialize(admin)`
+   - Purpose: Operational security and incident response
+
+2. **Governance Admin**: Manages protocol parameters and validation rules
+   - Controls: `update_protocol_parameters()`, admin transfer
+   - Initialized via: `initialize_governance(admin)`
+   - Purpose: Protocol evolution and parameter tuning
+
+These two systems are independent and can have different administrators, enabling role separation.
+
+## Protocol Parameters
+
+### Governed Parameters
+
+The governance system controls four critical validation parameters:
+
+1. **min_milestone_amount** (i128)
+   - Minimum amount allowed for any milestone
+   - Default: 1
+   - Validation: Must be positive (> 0)
+   - Impact: Prevents dust milestones and spam contracts
+
+2. **max_milestones** (u32)
+   - Maximum number of milestones per contract
+   - Default: 16
+   - Validation: Must be positive (> 0)
+   - Impact: Controls storage costs and complexity
+
+3. **min_reputation_rating** (i128)
+   - Minimum valid reputation rating
+   - Default: 1
+   - Validation: Must be positive (> 0)
+   - Impact: Defines lower bound of rating scale
+
+4. **max_reputation_rating** (i128)
+   - Maximum valid reputation rating
+   - Default: 5
+   - Validation: Must be >= min_reputation_rating
+   - Impact: Defines upper bound of rating scale
+
+### Parameter Validation
+
+All parameter updates are validated before being applied:
+
+```rust
+fn validated_protocol_parameters(
+    min_milestone_amount: i128,
+    max_milestones: u32,
+    min_reputation_rating: i128,
+    max_reputation_rating: i128,
+) -> ProtocolParameters {
+    if min_milestone_amount <= 0 {
+        panic!("minimum milestone amount must be positive");
+    }
+    if max_milestones == 0 {
+        panic!("maximum milestones must be positive");
+    }
+    if min_reputation_rating <= 0 {
+        panic!("minimum reputation rating must be positive");
+    }
+    if min_reputation_rating > max_reputation_rating {
+        panic!("reputation rating range is invalid");
+    }
+    // ... create and return parameters
+}
+```
+
+## Governance Operations
+
+### Initialization
+
+**Function**: `initialize_governance(admin: Address) -> bool`
+
+**Purpose**: One-time setup of governance admin
+
+**Security Properties**:
+- Can only be called once (panics on repeat calls)
+- Requires authentication from the proposed admin
+- Does not affect existing contracts or pause controls
+- Sets initial admin without modifying parameters (uses defaults)
+
+**Usage**:
+```rust
+let admin = Address::generate(&env);
+client.initialize_governance(&admin);
+```
+
+**Threat Mitigation**: Single-use initialization prevents admin replacement attacks.
+
+### Parameter Updates
+
+**Function**: `update_protocol_parameters(min_milestone_amount, max_milestones, min_reputation_rating, max_reputation_rating) -> bool`
+
+**Purpose**: Update validation parameters for future contracts
+
+**Security Properties**:
+- Requires governance admin authentication
+- All parameters validated before application
+- Changes apply to new contracts only (existing contracts unaffected)
+- Can be called during pause (governance independent of pause controls)
+
+**Usage**:
+```rust
+// Increase minimum milestone to prevent dust
+client.update_protocol_parameters(&100_i128, &16_u32, &1_i128, &5_i128);
+```
+
+**Threat Mitigation**: 
+- Admin authentication prevents unauthorized changes
+- Validation prevents invalid parameter combinations
+- Existing contracts protected from retroactive changes
+
+### Admin Transfer (Two-Step)
+
+**Step 1 - Propose**: `propose_governance_admin(new_admin: Address) -> bool`
+
+**Purpose**: Current admin proposes a new admin
+
+**Security Properties**:
+- Requires current admin authentication
+- Can be called multiple times (overwrites pending admin)
+- Does not immediately transfer control
+- Pending admin can be queried via `get_pending_governance_admin()`
+
+**Usage**:
+```rust
+let new_admin = Address::generate(&env);
+client.propose_governance_admin(&new_admin);
+```
+
+**Step 2 - Accept**: `accept_governance_admin() -> bool`
+
+**Purpose**: Pending admin accepts the transfer
+
+**Security Properties**:
+- Requires pending admin authentication
+- Completes the transfer atomically
+- Clears pending admin state
+- New admin immediately has full control
+
+**Usage**:
+```rust
+// Called by the pending admin
+client.accept_governance_admin();
+```
+
+**Threat Mitigation**: Two-step transfer prevents:
+- Accidental admin transfers
+- Transfers to incorrect addresses
+- Social engineering attacks (both parties must consent)
+
+## Security Considerations
+
+### Key Management
+
+**Critical**: The governance admin key has significant power over protocol behavior.
+
+**Recommendations**:
+1. Use a multi-signature account for governance admin
+2. Store keys in hardware security modules (HSMs)
+3. Implement key rotation procedures
+4. Maintain offline backup keys in secure locations
+5. Document key holders and access procedures
+
+### Parameter Change Impact
+
+**Before updating parameters, consider**:
+
+1. **Economic Impact**: How will changes affect user behavior?
+2. **Backward Compatibility**: Will existing integrations break?
+3. **Attack Vectors**: Could new parameters enable exploits?
+4. **User Communication**: Have users been notified of changes?
+
+### Governance Attack Scenarios
+
+#### 1. Compromised Admin Key
+
+**Threat**: Attacker gains control of governance admin key
+
+**Impact**: 
+- Can modify protocol parameters
+- Can transfer admin to attacker-controlled address
+- Cannot access escrowed funds directly
+- Cannot pause/unpause (separate admin)
+
+**Mitigation**:
+- Multi-signature admin account
+- Monitoring of parameter change events
+- Emergency pause by separate admin
+- Regular key rotation
+
+#### 2. Malicious Parameter Updates
+
+**Threat**: Admin sets parameters to enable exploits
+
+**Examples**:
+- Setting min_milestone_amount to 0 (prevented by validation)
+- Setting max_milestones to extreme values
+- Invalid rating ranges (prevented by validation)
+
+**Mitigation**:
+- Parameter validation in contract
+- Community review of parameter changes
+- Timelock for parameter updates (future enhancement)
+- Monitoring and alerting on parameter changes
+
+#### 3. Admin Transfer Attacks
+
+**Threat**: Unauthorized admin transfer
+
+**Attack Vectors**:
+- Social engineering of current admin
+- Compromised admin key
+- Phishing pending admin
+
+**Mitigation**:
+- Two-step transfer process
+- Both parties must authenticate
+- Pending admin can be overwritten by current admin
+- Off-chain verification procedures
+
+## Operational Procedures
+
+### Parameter Update Procedure
+
+1. **Proposal Phase**
+   - Document proposed changes and rationale
+   - Analyze impact on existing users
+   - Review security implications
+   - Publish proposal for community review
+
+2. **Review Phase**
+   - Allow time for community feedback
+   - Conduct security review
+   - Test changes in staging environment
+   - Prepare rollback plan
+
+3. **Execution Phase**
+   - Authenticate as governance admin
+   - Call `update_protocol_parameters()` with new values
+   - Verify changes via `get_protocol_parameters()`
+   - Monitor for unexpected behavior
+
+4. **Post-Update Phase**
+   - Announce changes to users
+   - Monitor contract creation patterns
+   - Document changes in changelog
+   - Update integration documentation
+
+### Admin Transfer Procedure
+
+1. **Preparation**
+   - Verify new admin identity through multiple channels
+   - Ensure new admin has secure key management
+   - Document transfer in governance records
+   - Prepare communication to community
+
+2. **Proposal**
+   - Current admin calls `propose_governance_admin()`
+   - Verify pending admin via `get_pending_governance_admin()`
+   - Communicate transfer to stakeholders
+
+3. **Acceptance**
+   - New admin verifies proposal details
+   - New admin calls `accept_governance_admin()`
+   - Verify transfer via `get_governance_admin()`
+   - Old admin confirms loss of access
+
+4. **Post-Transfer**
+   - New admin tests access with read-only query
+   - Update documentation with new admin
+   - Archive old admin keys securely
+   - Announce transfer completion
+
+### Emergency Response
+
+**Scenario**: Governance admin key compromised
+
+**Immediate Actions**:
+1. Pause admin (separate from governance) calls `activate_emergency_pause()`
+2. Halt all contract creation and operations
+3. Assess extent of compromise
+4. Prepare new governance admin key
+
+**Recovery**:
+1. If attacker has not transferred admin:
+   - Legitimate admin proposes new admin (if still has access)
+   - Accept transfer to secure key
+2. If attacker has transferred admin:
+   - Contract upgrade may be required (if upgrade mechanism exists)
+   - Otherwise, deploy new contract version
+3. Resume operations via `resolve_emergency()`
+4. Conduct post-incident review
+
+## Monitoring and Alerting
+
+### Key Metrics to Monitor
+
+1. **Parameter Changes**
+   - Track all calls to `update_protocol_parameters()`
+   - Alert on unexpected changes
+   - Log parameter values before/after
+
+2. **Admin Transfers**
+   - Monitor `propose_governance_admin()` calls
+   - Alert on admin transfer proposals
+   - Verify transfers through multiple channels
+
+3. **Failed Authorization**
+   - Track failed admin authentication attempts
+   - Alert on repeated failures
+   - Investigate unauthorized access attempts
+
+4. **Parameter Impact**
+   - Monitor contract creation patterns after parameter changes
+   - Track milestone distributions
+   - Analyze reputation rating distributions
+
+### Recommended Alerts
+
+- **Critical**: Admin transfer proposal
+- **Critical**: Admin transfer acceptance
+- **High**: Parameter update
+- **Medium**: Failed admin authentication
+- **Low**: Parameter query patterns
+
+## Testing Requirements
+
+### Governance Test Coverage
+
+The governance test suite includes:
+
+1. **Initialization Tests**
+   - Single-use initialization
+   - Admin authentication
+   - Default parameter verification
+
+2. **Parameter Update Tests**
+   - Valid parameter updates
+   - Invalid parameter rejection (zero, negative, invalid ranges)
+   - Admin authentication requirement
+   - Parameter persistence
+
+3. **Admin Transfer Tests**
+   - Two-step transfer flow
+   - Proposal overwriting
+   - Acceptance authentication
+   - Post-transfer functionality
+
+4. **Integration Tests**
+   - Governance with pause controls
+   - Parameter impact on contract creation
+   - Complete governance lifecycle
+
+5. **Security Tests**
+   - Unauthorized access attempts
+   - Parameter validation edge cases
+   - Admin transfer attack scenarios
+
+### Test Coverage Target
+
+- Minimum 95% code coverage for governance module
+- All panic conditions tested
+- All authorization checks verified
+- All state transitions validated
+
+## Future Enhancements
+
+### Recommended Improvements
+
+1. **Timelock for Parameter Updates**
+   - Add delay between proposal and execution
+   - Allow community review period
+   - Enable emergency cancellation
+
+2. **Multi-Signature Admin**
+   - Require multiple signatures for parameter updates
+   - Implement threshold signatures (e.g., 3-of-5)
+   - Distribute trust among multiple parties
+
+3. **Parameter Change Events**
+   - Emit events for all parameter changes
+   - Include old and new values
+   - Enable off-chain monitoring
+
+4. **Admin Role Separation**
+   - Separate proposer and executor roles
+   - Implement parameter change approval workflow
+   - Add emergency parameter rollback
+
+5. **Parameter Bounds**
+   - Add maximum limits for parameters
+   - Prevent extreme values
+   - Implement rate limiting for changes
+
+6. **Governance Token**
+   - Implement token-based governance
+   - Enable community voting on parameter changes
+   - Decentralize control over time
+
+## Compliance and Audit
+
+### Audit Checklist
+
+- [ ] All governance functions have authentication checks
+- [ ] Parameter validation is comprehensive
+- [ ] Admin transfer is two-step
+- [ ] Initialization is single-use
+- [ ] Test coverage exceeds 95%
+- [ ] All panic conditions are documented
+- [ ] Security procedures are documented
+- [ ] Monitoring and alerting configured
+- [ ] Key management procedures defined
+- [ ] Emergency response plan documented
+
+### Regular Reviews
+
+- **Monthly**: Review parameter values for appropriateness
+- **Quarterly**: Audit admin key security
+- **Annually**: Comprehensive security audit
+- **After incidents**: Post-mortem and procedure updates
+
+## Conclusion
+
+The protocol governance system provides controlled evolution of validation parameters while maintaining security through authentication, validation, and two-step admin transfers. Proper key management, monitoring, and operational procedures are essential for secure governance operations.
+
+The separation of governance admin from pause controls enables role separation and reduces the impact of key compromise. Future enhancements including timelocks, multi-signature requirements, and event emission will further strengthen the governance security model.
+
+## References
+
+- [Threat Model](./threat-model.md) - Complete security threat analysis
+- [Security Notes](./security.md) - Pause and emergency controls
+- [Contract Documentation](./README.md) - Operational guidance
+- Main README - Protocol governance overview
+
+## Document Maintenance
+
+- **Version**: 1.0
+- **Last Updated**: 2026-03-25
+- **Next Review**: 2026-06-25
+- **Owner**: TalentTrust Security Team
diff --git a/docs/escrow/threat-model.md b/docs/escrow/threat-model.md
new file mode 100644
index 0000000..b0b93b4
--- /dev/null
+++ b/docs/escrow/threat-model.md
@@ -0,0 +1,454 @@
+# Escrow Contract Threat Model
+
+## Executive Summary
+
+This document provides a comprehensive threat model for the TalentTrust escrow smart contract deployed on the Stellar Soroban platform. It identifies potential security threats, attack vectors, and mitigation strategies across all contract functionality including escrow operations, protocol governance, emergency controls, and reputation management.
+
+## Scope
+
+This threat model covers:
+- Core escrow operations (create, fund, approve, release)
+- Protocol parameter governance
+- Emergency pause controls
+- Reputation credential system
+- State machine transitions
+- Authorization and access control
+
+## Trust Boundaries
+
+### On-Chain Trust Boundaries
+1. Contract code execution environment (Soroban VM)
+2. Persistent storage (contract state)
+3. Address authentication (Stellar account signatures)
+
+### Off-Chain Trust Boundaries
+1. Admin key management
+2. Governance admin key management
+3. Client/freelancer key management
+4. Monitoring and incident response systems
+
+## Assets
+
+### Critical Assets
+1. Escrowed funds (XLM or other Stellar assets)
+2. Contract state integrity
+3. Reputation data
+4. Protocol parameters
+5. Admin privileges
+
+### Asset Valuation
+- Escrowed funds: High (direct financial loss)
+- Contract state: High (operational integrity)
+- Reputation data: Medium (trust and credibility)
+- Protocol parameters: High (system-wide impact)
+- Admin privileges: Critical (full control)
+
+## Threat Actors
+
+### External Attackers
+- Malicious users attempting to steal funds
+- Attackers seeking to disrupt service
+- Reputation manipulators
+
+### Internal Threats
+- Compromised admin keys
+- Compromised governance admin keys
+- Malicious or negligent administrators
+
+### Systemic Threats
+- Soroban platform vulnerabilities
+- Stellar network issues
+- Smart contract bugs
+
+## Threat Scenarios and Mitigations
+
+### 1. Unauthorized Fund Withdrawal
+
+**Threat**: Attacker attempts to release milestone funds without proper authorization.
+
+**Attack Vectors**:
+- Direct call to `release_milestone` without approval
+- Bypassing authorization checks
+- Replay attacks on approval signatures
+
+**Mitigations**:
+- `release_milestone` requires prior approval via `approve_milestone_release`
+- Authorization scheme enforced via `ReleaseAuthorization` enum
+- Soroban address authentication (`require_auth()`)
+- Milestone release is irreversible (`released` flag)
+- Status checks prevent releases in wrong contract states
+
+**Residual Risk**: Low. Multiple layers of authorization required.
+
+### 2. Double-Spending Milestone Funds
+
+**Threat**: Attacker attempts to release the same milestone multiple times.
+
+**Attack Vectors**:
+- Calling `release_milestone` multiple times for same milestone
+- Race conditions in concurrent release attempts
+
+**Mitigations**:
+- `released` flag is checked before release
+- Panic on attempt to release already-released milestone
+- Atomic state transitions in Soroban
+
+**Residual Risk**: Negligible. State machine prevents double-release.
+
+### 3. Unauthorized Contract Creation
+
+**Threat**: Attacker creates malicious escrow contracts with invalid parameters.
+
+**Attack Vectors**:
+- Creating contracts with zero or negative milestone amounts
+- Creating contracts with excessive milestone counts
+- Setting client and freelancer to same address
+
+**Mitigations**:
+- Validation of milestone amounts (must be positive)
+- Validation that client != freelancer
+- Protocol parameter limits (max_milestones, min_milestone_amount)
+- Pause controls can halt contract creation during incidents
+
+**Residual Risk**: Low. Input validation comprehensive.
+
+### 4. Deposit Amount Manipulation
+
+**Threat**: Client deposits incorrect amount to escrow.
+
+**Attack Vectors**:
+- Depositing less than total milestone amount
+- Depositing more than required
+- Multiple deposit attempts
+
+**Mitigations**:
+- Exact amount matching required (`amount != total_required` panics)
+- Only client can deposit (`caller != contract.client` panics)
+- Status check ensures deposit only in `Created` state
+- Single deposit enforced by state transition to `Funded`
+
+**Residual Risk**: Negligible. Strict validation prevents manipulation.
+
+### 5. Unauthorized Pause/Emergency Controls
+
+**Threat**: Attacker gains control of pause/emergency functions.
+
+**Attack Vectors**:
+- Direct calls to `pause`, `unpause`, `activate_emergency_pause`
+- Re-initialization to replace admin
+- Admin key compromise
+
+**Mitigations**:
+- All control functions require admin authentication (`require_admin`)
+- Single-use initialization prevents admin replacement
+- `unpause` blocked while emergency mode active
+- Pause state checked on all mutating operations
+
+**Residual Risk**: Medium. Depends on admin key security (see recommendations).
+
+### 6. Protocol Parameter Manipulation
+
+**Threat**: Attacker modifies protocol parameters to enable exploits.
+
+**Attack Vectors**:
+- Setting min_milestone_amount to 0
+- Setting max_milestones to extreme values
+- Invalid reputation rating ranges
+- Unauthorized parameter updates
+
+**Mitigations**:
+- Governance admin authentication required
+- Parameter validation in `validated_protocol_parameters`
+- Two-step admin transfer (propose + accept)
+- Safe defaults used before governance initialization
+
+**Residual Risk**: Medium. Depends on governance admin key security.
+
+### 7. Governance Admin Takeover
+
+**Threat**: Attacker gains control of governance admin role.
+
+**Attack Vectors**:
+- Compromised governance admin key
+- Social engineering of pending admin
+- Re-initialization attempts
+
+**Mitigations**:
+- Two-step admin transfer (current admin proposes, new admin accepts)
+- Both parties must authenticate their actions
+- Single-use governance initialization
+- Pending admin can be overwritten by current admin
+
+**Residual Risk**: Medium. Key management is critical.
+
+### 8. Reputation System Manipulation
+
+**Threat**: Attacker inflates reputation scores fraudulently.
+
+**Attack Vectors**:
+- Issuing reputation without completed contracts
+- Rating manipulation
+- Sybil attacks with fake contracts
+
+**Mitigations**:
+- Reputation issuance currently placeholder (returns true)
+- Pending reputation credits tracked separately
+- Protocol parameters enforce rating bounds
+- Future implementation will require completed contract verification
+
+**Residual Risk**: High. Current implementation is placeholder (see recommendations).
+
+### 9. State Machine Bypass
+
+**Threat**: Attacker bypasses contract lifecycle state machine.
+
+**Attack Vectors**:
+- Releasing milestones before funding
+- Funding after completion
+- Approving in wrong states
+
+**Mitigations**:
+- Explicit status checks in all state-changing functions
+- Status transitions are unidirectional (Created → Funded → Completed)
+- Disputed state reserved but not reachable (future feature)
+
+**Residual Risk**: Low. State machine enforced consistently.
+
+### 10. Denial of Service via Pause
+
+**Threat**: Malicious admin pauses contract indefinitely.
+
+**Attack Vectors**:
+- Repeated pause calls
+- Refusing to unpause
+- Emergency pause without resolution
+
+**Mitigations**:
+- Admin authentication required (limits to trusted party)
+- Emergency and normal pause are separate flags
+- Read-only status functions allow monitoring
+
+**Residual Risk**: Medium. Requires admin key compromise or malicious admin.
+
+### 11. Reentrancy Attacks
+
+**Threat**: Attacker exploits reentrancy in fund release.
+
+**Attack Vectors**:
+- Recursive calls during milestone release
+- Cross-contract reentrancy
+
+**Mitigations**:
+- Soroban execution model prevents reentrancy
+- State updates before external calls (checks-effects-interactions pattern)
+- Released flag set before any external operations
+
+**Residual Risk**: Negligible. Soroban architecture prevents reentrancy.
+
+### 12. Integer Overflow/Underflow
+
+**Threat**: Arithmetic operations cause overflow or underflow.
+
+**Attack Vectors**:
+- Large milestone amounts causing overflow
+- Negative amounts bypassing checks
+
+**Mitigations**:
+- Rust's default overflow checks in debug mode
+- Explicit validation of positive amounts
+- i128 type provides large range
+
+**Residual Risk**: Low. Rust safety features and validation.
+
+### 13. Storage Exhaustion
+
+**Threat**: Attacker exhausts contract storage limits.
+
+**Attack Vectors**:
+- Creating excessive contracts
+- Large milestone vectors
+- Reputation data accumulation
+
+**Mitigations**:
+- Protocol parameter `max_milestones` limits milestone count
+- Soroban storage limits enforced by platform
+- Persistent storage requires rent payments
+
+**Residual Risk**: Low. Platform-level protections.
+
+### 14. Timestamp Manipulation
+
+**Threat**: Attacker manipulates ledger timestamps.
+
+**Attack Vectors**:
+- Exploiting timestamp-dependent logic
+- Time-based approval bypasses
+
+**Mitigations**:
+- Timestamps used only for recording (approval_timestamp, created_at)
+- No time-based authorization logic
+- Soroban ledger timestamps are consensus-based
+
+**Residual Risk**: Negligible. Timestamps not used for security decisions.
+
+### 15. Arbiter Collusion
+
+**Threat**: Arbiter colludes with client or freelancer.
+
+**Attack Vectors**:
+- Arbiter approves releases without work completion
+- Arbiter blocks legitimate releases
+- Arbiter-only authorization abuse
+
+**Mitigations**:
+- Authorization scheme configurable per contract
+- ClientAndArbiter mode requires either party
+- MultiSig mode requires client approval
+- Arbiter is optional
+
+**Residual Risk**: Medium. Depends on arbiter selection and authorization mode.
+
+## Attack Surface Analysis
+
+### Public Functions (Attack Surface)
+1. `create_contract` - Input validation critical
+2. `deposit_funds` - Amount and authorization checks
+3. `approve_milestone_release` - Authorization enforcement
+4. `release_milestone` - State machine and approval verification
+5. `issue_reputation` - Currently placeholder
+6. `initialize` - Single-use protection
+7. `pause/unpause` - Admin authentication
+8. `activate_emergency_pause/resolve_emergency` - Admin authentication
+9. `initialize_governance` - Single-use protection
+10. `update_protocol_parameters` - Validation and authentication
+11. `propose_governance_admin/accept_governance_admin` - Two-step transfer
+
+### Read-Only Functions (Minimal Risk)
+- `get_contract`, `get_reputation`, `get_pending_reputation_credits`
+- `get_protocol_parameters`, `get_governance_admin`, `get_pending_governance_admin`
+- `is_paused`, `is_emergency`, `get_admin`
+- `hello` (test function)
+
+## Security Assumptions
+
+1. **Soroban Platform Security**: Assumes Soroban VM and Stellar network operate as designed
+2. **Cryptographic Primitives**: Assumes Stellar signature schemes are secure
+3. **Key Management**: Assumes private keys are securely managed off-chain
+4. **Admin Trustworthiness**: Assumes admin and governance admin act in good faith
+5. **Network Availability**: Assumes Stellar network remains available for transactions
+6. **Storage Persistence**: Assumes Soroban persistent storage is reliable
+
+## Compliance and Regulatory Considerations
+
+1. **Fund Custody**: Contract holds funds in escrow - may have regulatory implications
+2. **Dispute Resolution**: Limited on-chain dispute resolution (arbiter role)
+3. **Data Privacy**: All data is public on blockchain
+4. **Jurisdiction**: Smart contract operates globally - jurisdiction unclear
+5. **KYC/AML**: No identity verification in contract layer
+
+## Recommended Security Hardening
+
+### High Priority
+1. **Multi-Signature Admin**: Replace single admin with multi-sig account
+2. **Reputation Implementation**: Complete reputation system with verification
+3. **Event Logging**: Add comprehensive event emission for all state changes
+4. **Timelock for Governance**: Add delay between parameter proposal and execution
+5. **Emergency Withdrawal**: Add mechanism for users to withdraw during extended pause
+
+### Medium Priority
+6. **Role Separation**: Separate pauser and resolver roles
+7. **Rate Limiting**: Add cooldown periods for sensitive operations
+8. **Arbiter Rotation**: Support arbiter replacement in long-running contracts
+9. **Partial Releases**: Support partial milestone amount releases
+10. **Dispute Resolution**: Implement on-chain dispute resolution flow
+
+### Low Priority
+11. **Gas Optimization**: Optimize storage access patterns
+12. **Batch Operations**: Support batch milestone approvals/releases
+13. **Contract Upgradability**: Add upgrade mechanism with governance
+14. **Fee Collection**: Add protocol fee mechanism
+15. **Analytics**: Add metrics collection for monitoring
+
+## Testing Requirements
+
+### Unit Tests (95%+ Coverage Required)
+- All state transitions
+- Authorization checks
+- Input validation
+- Edge cases (minimum/maximum values)
+- Failure paths
+
+### Integration Tests
+- End-to-end escrow flows
+- Multi-party interactions
+- Governance operations
+- Emergency scenarios
+
+### Security Tests
+- Unauthorized access attempts
+- Double-spending attempts
+- State machine violations
+- Parameter manipulation
+- Reentrancy (if applicable)
+
+### Performance Tests
+- Gas consumption baselines
+- Storage efficiency
+- Concurrent operation handling
+
+## Incident Response Plan
+
+### Detection
+1. Monitor pause/emergency events
+2. Track unusual transaction patterns
+3. Monitor governance parameter changes
+4. Alert on failed authorization attempts
+
+### Response
+1. **Immediate**: Call `activate_emergency_pause` if critical vulnerability detected
+2. **Investigation**: Analyze transaction history and contract state
+3. **Mitigation**: Deploy fixes or parameter updates via governance
+4. **Recovery**: Call `resolve_emergency` after validation
+5. **Communication**: Publish incident report and lessons learned
+
+### Post-Incident
+1. Update threat model with new scenarios
+2. Add regression tests for discovered issues
+3. Review and update security procedures
+4. Consider protocol parameter adjustments
+
+## Security Audit Checklist
+
+- [ ] All public functions have authorization checks
+- [ ] Input validation on all user-supplied data
+- [ ] State machine transitions are unidirectional and validated
+- [ ] No reentrancy vulnerabilities
+- [ ] Integer overflow/underflow protections
+- [ ] Storage access patterns are efficient
+- [ ] Emergency controls function correctly
+- [ ] Governance mechanisms are secure
+- [ ] Test coverage exceeds 95%
+- [ ] All panic conditions are documented
+- [ ] Event emission for critical operations
+- [ ] Documentation is complete and accurate
+
+## Conclusion
+
+The TalentTrust escrow contract implements multiple layers of security controls including authorization checks, state machine enforcement, input validation, and emergency controls. The primary residual risks relate to key management (admin and governance admin keys) and the incomplete reputation system implementation.
+
+The recommended hardening steps, particularly multi-signature admin accounts and comprehensive event logging, should be prioritized for production deployment. Regular security audits and continuous monitoring are essential for maintaining security posture.
+
+## Document Maintenance
+
+- **Version**: 1.0
+- **Last Updated**: 2026-03-25
+- **Next Review**: 2026-06-25
+- **Owner**: TalentTrust Security Team
+- **Reviewers**: Smart Contract Auditors, Protocol Team
+
+## References
+
+- Soroban Documentation: https://soroban.stellar.org/docs
+- Stellar Security Best Practices
+- Smart Contract Security Verification Standard (SCSVS)
+- OWASP Smart Contract Top 10