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After dissing Anthropic for limiting Mythos, OpenAI restricts access to Cyber, too

TechCrunch AI Julie Bort April 30, 2026
After dissing Anthropic for limiting Mythos, OpenAI restricts access to Cyber, too
AI Summary— plain English for professionals

# OpenAI Limits Access to Its New Security Tool OpenAI is releasing a new tool designed to help find computer security weaknesses, but it's only giving access to professional cybersecurity experts at first—not the general public. The company is being cautious because such a tool could potentially be misused by hackers if it were widely available. This is similar to a recent decision by competitor Anthropic to restrict access to their own security testing tool.

OpenAI will begin rolling out it cybersecurity testing tool, GPT-5.5 Cyber only "to critical cyber defenders" at first.

Read full article on TechCrunch AI

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