Add MCP security research: tool poisoning to RCE, calendar exfil, ChatGPT connector

[baync180705]

Adds three MCP security research posts. MCP (Model Context Protocol) is an underrepresented attack surface in this list - the only existing Platform Security entry covers ChatGPT Plugins (2023). These cover: tool poisoning escalating to RCE, a coordinated disclosure across 11 AI platforms via calendar exfiltration, and zero-click data exfiltration through the ChatGPT MCP connector. All include documented attack chains.

Summary by CodeRabbit

문서

• README의 Articles 섹션에 3개의 새로운 보안 관련 기사가 추가되었습니다.

[coderabbitai]

Walkthrough

README.md의 Articles 섹션에 세 개의 새로운 항목이 추가되었습니다: "MCP Tool Poisoning to RCE," "Zero-click Calendar Exfiltration: MCP Security Risk in 11 AI Systems," "ChatGPT MCP Connector: Zero-click Data Exfiltration." 각 항목은 repello.ai로의 하이퍼링크를 포함합니다.

Changes

Cohort / File(s)	Summary
문서 업데이트 README.md	Articles 섹션에 MCP 보안 관련 세 개의 새로운 기사 항목과 repello.ai 링크 추가

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	제목은 pull request의 주요 변경 사항을 명확하게 요약하고 있습니다. MCP 보안 연구 논문 세 개 추가라는 핵심 변경 내용을 간결하게 설명하고 있으며, 실제 변경 사항(tool poisoning to RCE, calendar exfiltration, ChatGPT connector)과 완벽하게 일치합니다.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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