Claude on X: "Following conversations with the US government, we’ve updated our cybersecurity safeguards.
The vast majority of coding work is unaffected.
In the near term, the new safeguards will flag a slightly higher fraction of harmless requests than the previous Fable safeguards; we’re" / X
[](https://twitter.com/)
Post
Post


Replying to @claudeai
Following conversations with the US government, we’ve updated our cybersecurity safeguards. The vast majority of coding work is unaffected. In the near term, the new safeguards will flag a slightly higher fraction of harmless requests than the previous Fable safeguards; we’re working to refine these over the coming weeks. Users will be clearly notified when a request is flagged, and they’ll instead receive a response from Opus 4.8. Our biology and chemistry classifiers are unchanged from our initial launch. These are still broader than we would like; they trigger fallbacks to Opus 4.8 on basic biology-adjacent questions. Improvements to these classifiers are landing soon.
7:31 PM · Jul 1, 2026451.7K Views
1 4 8 148
2 0 2 202
3.5 K 3.5K
2 4 7 247
Read 148 replies
New to X?
Sign up now to get your own personalized timeline!
Sign up with Google Sign up with AppleCreate account
By signing up, you agree to the Terms of Service and Privacy Policy, including Cookie Use.
Relevant people

Trending now
Terms·Privacy·Cookies·Accessibility·Ads Info·More© 2026 X Corp.
Don't miss what's happening
People on X are the first to know.