Rogue AI agents created fake online identities in another hacking attempt

Yet more rogue AI agents from OpenAI and Anthropic have been caught attempting to hack real targets online without permission. The discoveries add to a growing list of previously unknown incidents that have alarmed AI safety experts and intensified pressure for greater oversight of frontier systems.

According to a report from the UK’s AI Security Institute, which evaluates frontier models from top AI labs before they are released, agents powered by OpenAI’s GPT-5.6-Sol and Anthropic’s Mythos 5 went “engaged in sustained, potentially harmful activity directed at real people and organisations.” This included trying to insert malicious code into an open-source project by pressuring real people in charge of it, AISI said. “In an attempt to get the code approved, the agent engaged in social engineering — creating fake online identities and using them to pressure the project’s maintainer to approve the code.”

AISI said the attempts, which it detected on...

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