Latest cybersecurity reporting from selected sources.

Mythos Found ‘Tens of Thousands’ of Unpatched Flaws With Months to Fix ThemAnthropic CEO Dario Amodei warned that Claude Mythos has found tens of thousands of unpatched software vulnerabilities, with a six-to-12 month window before Chinese AI models catch up. The disclosure came alongside a major financial services push including an investor-backed firm and 10 new AI agents.

Also: Texas AG Sues Smart TV Manufacturers, Fortinet SSO FlawsThis week, a leadership shakeup at Coupang, attackers exploited critical Fortinet SSO flaws, Pornhub data hacked, Texas Attorney General Ken Paxton sued smart TV makers, auto finance provider 700Credit disclosed a breach affecting millions, A revived pro-Russia ransomware operation stumbled.

JP Morgan Chase, Citi and Morgan Stanley Among Banking Customers ImpactedMajor U.S. banks are assessing their exposure to a cybersecurity incident at real estate financial technology company SitusAMC, which disclosed Saturday that a breach may have affected client data. The New York firm uncovered the incident on Nov. 12.

Insurance Giant Says Hackers Stole Data of 2.5 Million IndividualsA February ransomware attack against Prudential Financial affected 2.5 million customers, the financial giant disclosed after initially calculating the totally as 36,000. In an emailed statement, Prudential said the tally shouldn't increase a second time.

Hackers Used LLMs to Perform Tasks That Non-AI Tools Can PerformNation-state hackers including Russian military intelligence and hackers backed by China have used OpenAI large language models for research and to craft phishing emails, the artificial intelligence company disclosed Tuesday in conjunction with major financial backer Microsoft.

Official Says Disclosure Rule Includes Exceptions, Extensions for Smaller CompaniesThe U.S. Securities and Exchange Commission's requirement for publicly traded companies to report cyber incidents that have a material impact within four days is "not about playing gotcha with public companies," said the commission’s director of the corporation finance division.