Amazon · 2026-06-13 · major
Amazon's Jassy Pushed Anthropic Crackdown — flagged Fable 5 jailbreak risk
The Wall Street Journal reports Amazon CEO Andy Jassy told Treasury Secretary Scott Bessent that Amazon researchers had used Claude Fable 5 to obtain cyberattack-relevant info. Days later the US government ordered the worldwide suspension.
WSJ scoop: Amazon CEO Andy Jassy warned Treasury that Claude Fable 5 leaked cyberattack info — the US ban followed.
What is it
A Wall Street Journal report, picked up by TechCrunch on June 13, names Amazon CEO Andy Jassy as the person whose conversations with US officials triggered the export-control directive that froze worldwide access to Claude Fable 5 and Mythos 5 on June 12. Jassy reportedly raised the concerns with Treasury Secretary Scott Bessent.
How it works
According to the WSJ, Amazon's own researchers got Claude Fable 5 to return information that could be used in cyberattacks, likely via a jailbreak that bypasses Anthropic's safeguards against helping identify software vulnerabilities. Jassy escalated the finding to Treasury Secretary Bessent. The Trump administration then directed Anthropic to block all foreign nationals from using Fable 5 and Mythos 5; Anthropic complied with a worldwide shutdown. David Sacks, the former White House AI czar, claims on X that the administration asked Anthropic to fix the jailbreak or deprecate the model and that Dario Amodei refused.
Why it matters
Amazon is Anthropic's largest investor, so the backstory matters: one cloud partner's internal red-teaming was the trigger for a national-security export ban that affects every Anthropic customer. It is the first time a US AI export control has been driven by a single private-sector escalation, and it sets the template for how future model-restriction decisions can be opened by named customer findings rather than independent government testing.
Who it's for
Anthropic API customers, AI policy watchers, security researchers