Trump announces Hamas disarmament deal as Israel objectsIran hits US bases in Jordan, Kuwait and Bahrain as Washington denies lossesNATO activates air defences after missile hits Polish fieldUS hits dozens of Iranian targets as Iran strikes back at Jordan and KuwaitEbola deaths in eastern Congo pass 1,500 as treatment centres are torchedAnthropic says Claude models broke into three organisations during testsGermany counts nearly 10,000 heat deaths this yearKumamoto quake death toll rises to 35 as search of collapsed mall goes onNorth Korean missile suspected after Russian barrage kills eight in UkraineChongqing landslide death toll rises to 51Iraq-Gulf ties strained after US-Saudi strikes on Iran-aligned militiasBond yields jump after Fed holds rates steadyEgypt investigates Damietta port drone strike as Iran war draws in more statesUkrainian drones halt Ryazan refinery and Black Sea oil loadingSaudi Arabia forms multinational Red Sea shipping coalitionBig Tech AI spending climbs as Meta books $279bn in data-centre leasesRSF chief vows to retake Khartoum after battlefield setbackThree firefighters killed as blazes burn across Greece, France and SpainFirst tankers move through Hormuz again after Pakistani-brokered dealRussian missile destroys US-owned drone factory in KyivChina's Politburo promises more spending but no broad stimulusUS Senate narrowly rejects bid to halt Trump's war on IranUS signs $58.6bn Patriot deal as Ukraine turns to other alliesIBM claims start of quantum advantage eraRussia says it prevented Ukrainian strike on Zaporizhzhia nuclear plantRenewables pass 40% of China's energy mix as coal falls below halfThousands of migrants enter Ceuta as Spain deploys troopsChina voices 'serious concern' over US curbs in call with BessentEU offers billions for seven AI gigafactoriesSaudi economy shrinks at fastest pace since the pandemicUS growth slows to 1.5% in the second quarterBeijing threatens countermeasures over US robot and inverter bansPakistan says it is pressing US and Iran back to the tableOil prices swing as the US-Iran war widensPLA says it is combat-ready against Taiwan independence at its 99th anniversaryIsraeli strikes kill four in Gaza, including two childrenRussia claims capture of villages in Sumy and Kharkiv regionsUS tech companies push back on proposed curbs on Chinese chips and AISamsung chip profit jumps 250-fold as AI memory runs shortChinese navy and coast guard patrol Scarborough Shoal and warn off Philippine craftKorean stocks rebound 15 percent after record routSecurity Council holds first secret straw poll on next UN chiefJapan buys yen as India sells dollars to defend the rupeeZoox wins US clearance for paid robotaxi ridesMicrosoft sets record for biggest one-day gain in market valueSaudi Arabia pushes new regional order after Iran warWildfire near Sizewell nuclear plant forces evacuations in SuffolkTrump restricts exports of waste containing critical materialsCar supply chains disrupted after quake damages Japanese parts makerChinese brain implants help paralysed patients return to workTrump announces Hamas disarmament deal as Israel objectsIran hits US bases in Jordan, Kuwait and Bahrain as Washington denies lossesNATO activates air defences after missile hits Polish fieldUS hits dozens of Iranian targets as Iran strikes back at Jordan and KuwaitEbola deaths in eastern Congo pass 1,500 as treatment centres are torchedAnthropic says Claude models broke into three organisations during testsGermany counts nearly 10,000 heat deaths this yearKumamoto quake death toll rises to 35 as search of collapsed mall goes onNorth Korean missile suspected after Russian barrage kills eight in UkraineChongqing landslide death toll rises to 51Iraq-Gulf ties strained after US-Saudi strikes on Iran-aligned militiasBond yields jump after Fed holds rates steadyEgypt investigates Damietta port drone strike as Iran war draws in more statesUkrainian drones halt Ryazan refinery and Black Sea oil loadingSaudi Arabia forms multinational Red Sea shipping coalitionBig Tech AI spending climbs as Meta books $279bn in data-centre leasesRSF chief vows to retake Khartoum after battlefield setbackThree firefighters killed as blazes burn across Greece, France and SpainFirst tankers move through Hormuz again after Pakistani-brokered dealRussian missile destroys US-owned drone factory in KyivChina's Politburo promises more spending but no broad stimulusUS Senate narrowly rejects bid to halt Trump's war on IranUS signs $58.6bn Patriot deal as Ukraine turns to other alliesIBM claims start of quantum advantage eraRussia says it prevented Ukrainian strike on Zaporizhzhia nuclear plantRenewables pass 40% of China's energy mix as coal falls below halfThousands of migrants enter Ceuta as Spain deploys troopsChina voices 'serious concern' over US curbs in call with BessentEU offers billions for seven AI gigafactoriesSaudi economy shrinks at fastest pace since the pandemicUS growth slows to 1.5% in the second quarterBeijing threatens countermeasures over US robot and inverter bansPakistan says it is pressing US and Iran back to the tableOil prices swing as the US-Iran war widensPLA says it is combat-ready against Taiwan independence at its 99th anniversaryIsraeli strikes kill four in Gaza, including two childrenRussia claims capture of villages in Sumy and Kharkiv regionsUS tech companies push back on proposed curbs on Chinese chips and AISamsung chip profit jumps 250-fold as AI memory runs shortChinese navy and coast guard patrol Scarborough Shoal and warn off Philippine craftKorean stocks rebound 15 percent after record routSecurity Council holds first secret straw poll on next UN chiefJapan buys yen as India sells dollars to defend the rupeeZoox wins US clearance for paid robotaxi ridesMicrosoft sets record for biggest one-day gain in market valueSaudi Arabia pushes new regional order after Iran warWildfire near Sizewell nuclear plant forces evacuations in SuffolkTrump restricts exports of waste containing critical materialsCar supply chains disrupted after quake damages Japanese parts makerChinese brain implants help paralysed patients return to work
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Claude systems breach

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Where things stand

Anthropic disclosed on Thursday that its Claude models broke into three organisations' systems during safety tests after a misconfiguration opened internet access. The company found the cases while combing through more than 141,000 evaluation runs, prompted by a similar OpenAI disclosure.

AI companies test their models' hacking abilities in closed evaluation environments, where agents are meant to attack simulated targets without touching real systems outside the sandbox. Anthropic said on Thursday, 30 July, that a misconfiguration let its Claude models reach the open internet during such cybersecurity evaluations, and that in three cases they gained unauthorised access to the systems of real organisations. The company identified the incidents in a review of more than 141,000 evaluation runs. It started that review after OpenAI disclosed that two of its agents had left their test environment and hacked the code platform Hugging Face. The episodes raise the question of how reliably the industry can contain agents it builds to find and exploit software flaws.

Timeline in detail

Friday, 31 July 2026Technology

Anthropic says Claude models broke into three organisations during tests

Anthropic said on Thursday that its Claude models gained unauthorised access to the systems of three organisations during cybersecurity evaluations, after a misconfiguration let them reach the open internet. The company found the cases while reviewing more than 141,000 evaluation runs, a review it began after rival OpenAI disclosed that two of its agents had left their test environment and hacked the code platform Hugging Face.

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