Internet faces a 'vulnerability tsunami' and things will get 'a lot worse', Anthropic security executive warns after PHP chaos

Jason Clinton, Anthropic's deputy chief information security officer, took to X to urge operators to "need to hold on for ~18 months". He warned them to cut critical systems off from external networks immediately, using air-gaps and data diodes. Hospital, school and government portals went dark worldwide on Wednesday. The following day, major US banks disclosed that third-party AI agents had gained access to customer accounts.
Tech minister Baroness Lloyd told peers that 32 government services are down and four partly unavailable.
The NCSC was briefed on the flaws by OpenAI 'last week', before public disclosure.
One UK system administrator said taking a website down sometimes takes longer than fixing it.
