Amazon security research reportedly led to the White House’s Anthropic Fable ban

The Wall Street Journal reports that Amazon cybersecurity research and CEO Andy Jassy’s discussions with the White House helped trigger export controls affecting Anthropic’s Fable 5 and Mythos 5. Amazon’s paper allegedly found that Fable 5 could be prompted to produce information useful for cyberattacks, leading officials to block access by foreign nationals.

The episode shows how AI safety concerns are increasingly merging with national security and export policy. If model access can be restricted based on adversarial testing, major cloud and AI providers may face growing pressure to prove their systems cannot enable dual-use cyber capabilities.

According to the Wall Street Journal, the export control directive that led to Anthropic cutting off access to Fable 5 and Mythos 5 was triggered in part by cybersecurity research from Amazon and conversations between CEO Andy Jassy and the White House. According to the report, the paper from Amazon claims that, through a series of prompts, it was able to get Fable 5 to serve up information that could be used in cyberattacks. Amazon has yet to respond to a request for comment. Shortly after Jassy shared the company's findings with the government, it made the call to block its use by foreign nationals. Complicating this issue is that many of … Read the full story at The Verge.