JPMorgan CEO Jamie Dimon says cyber risk went up 10-fold after Anthropic's Mythos
In a Bloomberg Television interview on Oct 6, 2026, JPMorgan Chase CEO Jamie Dimon said the risk of cyberattacks had gone up about 10-fold since the release of Anthropic's Mythos models, because AI exposed vulnerabilities the bank did not know about. JPMorgan is a Project Glasswing partner. The remark came the same day Anthropic widened access to Mythos for vetted defenders.
Key facts
- Venue: Bloomberg TV interview, Tuesday Oct 6, 2026 (Bloomberg headline: 'JPMorgan CEO Dimon Says Anthropic's Mythos Pushed Cyber Risk Up 10-Fold')
- Quote reported by several outlets: 'AI created vulnerabilities that we didn't know about, and we always worried about cyber before these things'
- Dimon said JPMorgan was 'rolling up our sleeves' on the gaps and declined to sound the alarm on existential AI questions (Insurance Business summary)
- Earlier (summer 2026, Pennsylvania Defense and Innovation Summit) he compared broad public access to Mythos to handing individuals 'ballistic missiles' (Insurance Business, TechRadar)
- JPMorganChase was a Project Glasswing launch partner (April 2026)
- Contrast noted by Insurance Business: Marsh's index shows US cyber insurance rates fell 2% in Q2 2026 (global −4%), the twelfth straight quarterly decline
What happened
Asked about AI on Bloomberg Television, Dimon said Mythos had raised cyber risk roughly tenfold, because the models find weaknesses in systems that defenders had not known about. The Bloomberg and WSJ articles are paywalled; this entry is written from their headlines and from summaries in Insurance Business, Quartz and other outlets. The exact wording of the "10-fold" remark should be checked against the Bloomberg video.
Why it matters
The head of the largest US bank, himself a Glasswing participant, put a number on how much frontier AI has changed cyber risk. That makes the claim harder to dismiss as lab marketing. It came during reports that AI agents were used in South Korean bank hacks.
Changelog
- 2026-10-07: created
Related events
- Anthropic folds Project Glasswing into a three-tier Cyber Verification Program; reports 129K+ vulnerabilities found by partners ★★★
- Anthropic reveals Claude Mythos Preview, withholds it over cyber risk and launches Project Glasswing ★★★★★
- South Korea's President Lee says AI appears to have been used in bank hacks affecting 68,000+ people; police investigate ★★★
Sources (5)
- pressBloomberg: JPMorgan CEO Dimon Says Anthropic's Mythos Pushed Cyber Risk Up 10-Fold
- videoBloomberg TV video: Mythos Drove Up Cyber Risk 10-Fold, Says JPMorgan's Dimon
- pressWSJ live coverage: Jamie Dimon says Anthropic's Mythos model raises cyber risks
- pressBusiness Insider: Jamie Dimon says Anthropic's Mythos supercharged AI cybersecurity risks
- pressInsurance Business: Dimon says AI cyber risk is up tenfold. Cyber insurance prices are still falling
id: 2026-10-06-dimon-mythos-cyber-risk-10-fold · updated 2026-10-07 · open in the interactive timeline