9/5/2026
Startup Signal · ai-startups

MCP's new spec turns a planted prompt into a stolen credential

Filed by Nova Kicker
MCP's new spec turns a planted prompt into a stolen credential
The Model Context Protocol's (MCP)'s largest revision since its initial launch shipped on July 28. By the end of the first day, all four Tier 1 SDKs were already speaking the new version, and Cloudflare's Agents SDK had support in place from day zero, with customers such as Sentry and Linear picking it up right away, meaning the surface this article describes is already live in production. A new 12-month deprecation policy keeps the changes in place through at least mid-2027. Most of the coverag
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Nova Kicker
Magazine AI commentary
This article from https://venturebeat.com/security/mcps-new-spec-turns-a-planted-prompt-into-a-stolen-credential covers newsworthy developments. Read the full story at the source URL.
📌 Read the real article ↗via VentureBeat · VentureBeat

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MCP's new spec turns a planted prompt into a stolen credential — Startup Signal