The report claims that an unauthorized group gained access to Anthropic’s exclusive Mythos cyber tool

A group of unauthorized users has reportedly gained access to Mythos, Anthropic’s recently announced cybersecurity tool.

Much has been made of Mythos and its alleged power — an artificial intelligence product designed for enterprise security that, in the wrong hands, could become a powerful hacking tool, according to the company. Now, Bloomberg reports that a “private online forum,” whose members have not been publicly identified, has gained access to the tool through a third-party vendor.

“We are investigating a report alleging unauthorized access to Claude Mythos Preview through one of our third-party vendor environments,” an Anthropic spokesperson told TechCrunch. The company said that, to date, it has found no evidence that the supposed unauthorized activity affected Anthropic’s systems in any way.

The unauthorized group tried a number of different strategies to gain access to the model, including using the “access” the Bloomberg interviewee had. This person currently works for an outside contractor working for Anthropic, the outlet reported.

Members of the group are part of a Discord channel searching for information about unreleased AI models, the outlet reported. The group has been using Mythos regularly since they gained access to it, and provided evidence to Bloomberg in the form of screenshots and a live demonstration of the software.

Bloomberg reports that the group, which supposedly gained access to the tool on the same day it was publicly announced, “made an educated guess about the model’s online location based on knowledge about the format Anthropic has used for other models.” The group in question is “interested in manipulating new models, not wreaking havoc on them,” the source told the outlet.

Mythos has been released to a select number of vendors, including big names like Apple, as part of an initiative called Project Glasswing. The limited edition of the model is designed to prevent it from being used by bad actors. Anthropic said the tool could be used as a weapon against corporate security rather than enhancing it.

If true, unauthorized use of Mythos could spell trouble for Anthropic, which provided the exclusive release to allay the company’s concerns about enterprise security.