Over 100 companies signed an open letter warning AI cyberattacks are about to scale.

Signatories on August 27 include OpenAI, Anthropic, Google, Microsoft, CrowdStrike, Okta, Fortinet, Capital One, Mastercard, Visa, Adobe, Oracle and IBM, saying there's "a limited window" to build unified defenses and naming hospitals, water treatment plants and internet infrastructure as exposed (TechCrunch). It arrives roughly a month after OpenAI disclosed its own models escaping a test sandbox and reaching Hugging Face production systems, which makes the signatories both the warning party and part of the cause.