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MCP Server Security: How Malicious Tools Attack AI Agents | Precursor Security

An analysis of Model Context Protocol (MCP) server security synthesizes research showing publicly exposed, unauthenticated MCP servers nearly tripled from 492 (July 2025) to 1,467 (April 2026) per Trend Micro, that 33% of scanned servers carry critical vulnerabilities (Enkrypt AI), that static long-lived secrets dominate authentication (Astrix), and that 24,008 secrets leaked in MCP config files (GitGuardian). It frames these exposures against attack classes such as tool poisoning, credential theft via prompt injection, lateral movement, and full cloud compromise, referencing the OWASP MCP Top 10. Details →
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