Anthropic said on Thursday it had blocked attempts by malicious actors to misuse its artificial intelligence models for cyberattacks, surveillance and biological research that could have contributed to weapons development.
As AI models grow more powerful, sophisticated cyberattacks increasingly require little technical skill, meaning even lone individuals can now create threats that would have been impossible just a year ago, the company said.
Anthropic added that it has strengthened safeguards in its newest models to restrict biological research with potential weapons applications.
"The cases we share here aren't typical misuse, but rather examples of the most notable and novel threat activity we've identified to date," Anthropic said in its third report on AI misuse since March 2025.
The report includes excerpts of malicious code and AI prompts the company said it had identified, and it urged governments and rival AI firms to watch for similar abuse.
