← All reports

An unauthorized group has accessed Anthropic's exclusive cyber tool Mythos.

CybersecurityTechnologyData ProtectionApr 21, 2026score 0.354 posts · 0 replies across 3 instances
Multiple sources report that an unauthorized group has accessed Anthropic's exclusive cyber tool Mythos, raising concerns about cybersecurity and data protection.

Claims

An unauthorized group has accessed Anthropic's exclusive cyber tool Mythos.
Parent: CybersecurityEntity: Anthropic's cyber tool MythosImpact: negativeDate: Apr 21, 2026 - Apr 23, 2026Target: An unauthorized group has accessed Anthropic's exclusive cyber tool Mythos.

Source posts

@[email protected]
Unauthorized group has gained access to Anthropic’s exclusive cyber tool Mythos, report claims https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/
4 boosts · 1 favs · 1 replies · Apr 22, 2026
@[email protected]
Unauthorized group has gained access to Anthropic’s exclusive cyber tool Mythos, report claims 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.” https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/ #Anthropic #Claude #Mythos #AI #security #technology #hacking
1 boosts · 0 favs · 0 replies · Apr 22, 2026
#anthropic#claude#mythos#ai#security#technology
@[email protected]
Unauthorized group has gained access to Anthropic’s exclusive cyber tool Mythos, report claims https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/?utm_source=flipboard&utm_medium=activitypub Posted into Artificial Intelligence in 2023: News and Updates @artificial-intelligence-in-2023-news-and-updates-Techcrunch
1 boosts · 0 favs · 0 replies · Apr 21, 2026
@[email protected]
Unauthorized group has gained access to Anthropic’s exclusive cyber tool Mythos, report claims https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/?utm_source=flipboard&utm_medium=activitypub Posted into Technology @technology-thenewsdesk
1 boosts · 0 favs · 0 replies · Apr 21, 2026
@[email protected]
Unauthorized group has gained access to Anthropic’s exclusive cyber tool Mythos, report claims https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/?utm_source=flipboard&utm_medium=activitypub Posted into Top Stories in Tech @top-stories-in-tech-thenewsdesk
2 boosts · 0 favs · 0 replies · Apr 22, 2026
@[email protected]
Much has been made of Mythos and its purported power — an AI product designed for enterprise security that, in the wrong hands, could become a potent hacking tool, according to the company: Unauthorized group has gained access to Anthropic's exclusive cyber tool Mythos, report claims | TechCrunch https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/
1 boosts · 0 favs · 0 replies · Apr 22, 2026
@[email protected]
Unauthorized group has gained access to Anthropic’s exclusive cyber tool Mythos, report claims | TechCrunch Anthropic told TechCrunch it is investigating the claims, but maintains that there is no evidence that its systems have been impacted. https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/
0 boosts · 0 favs · 0 replies · Apr 22, 2026
@[email protected]
Unauthorized group has gained access to #Anthropic’s exclusive cyber tool #Mythos, report claims https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/ #cybersecurity #AI #ClaudeMythos
0 boosts · 0 favs · 0 replies · Apr 23, 2026
#anthropic#mythos#cybersecurity#ai#claudemythos
@[email protected]
Unauthorized group has gained access to Anthropic’s exclusive cyber tool Mythos, report claims… #technology #thegeektribune https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/
0 boosts · 0 favs · 0 replies · Apr 21, 2026
#technology#thegeektribune
@[email protected]
Unauthorized group has gained access to Anthropic’s exclusive cyber tool Mythos, report claims https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/?utm_source=flipboard&utm_medium=activitypub Posted into Digitech Dreams @digitech-dreams-curiouscurator
0 boosts · 0 favs · 0 replies · Apr 22, 2026
@[email protected]
Unauthorized group has gained access to #Anthropic’s exclusive cyber tool #Mythos, report claims - https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/ I'm sure it's all fine... #ai
5 boosts · 0 favs · 2 replies · Apr 22, 2026
#anthropic#mythos#ai
@[email protected]
Unauthorized group has gained access to Anthropic’s exclusive cyber tool Mythos, report claims https://techcrunch.com/2026/04/21/unauthorized-group-has-gained-access-to-anthropics-exclusive-cyber-tool-mythos-report-claims/?utm_source=flipboard&utm_medium=activitypub Posted into Technology (UK Edition) @technology-uk-edition-FlipboardUK
0 boosts · 0 favs · 0 replies · Apr 21, 2026