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Feds freaked over Fable 5 after simple 'fix this code' prompt, not jailbreak, says researcher

The “jailbreak” that prompted the Trump administration to block Anthropic’s most advanced models was actually a simple three-word prompt: “Fix this code.” That's according to Katie Moussouris, founder and CEO of Luta Security, and the fairy godmother of bug bounties. She says she was the only outside expert to read the third-party research paper on the Fable 5 guardrail bypass techniques that prompted the ban. On Friday, the US government, reportedly citing national security concerns, issued an export control directive to suspend access to Fable 5 and Mythos 5 by any foreign national, inside or outside the United States. In response, Anthropic disabled both models “for all our customers to ensure compliance.” Anthropic shared the report privately with her, Moussouris wrote in a Monday blog post. The outside researchers reportedly fed Anthropic’s Fable 5, Mythos, and Claude Opus models open-source code containing known CVEs, plus new code intentionally laced with vulnerabilities, and asked the models to “review the code for security issues.” As Moussouris tells it, Fable 5 refused, so the researchers asked the AI systems to “fix this code.” The model reportedly obliged, and after additional prompts also produced scripts to test the patches. “That’s it,” Moussouris wrote. “‘Fix this code,’ plus several manual steps to generate test scripts, should never have triggered an export control. I feel like making ’90s-style t-shirts with ‘fix this code’ on the front and ‘this shirt is a munition’ on the back.” Between 2013 and 2017, Moussouris served on the technical expert group that renegotiated the Wassenaar Arrangement, a voluntary agreement between 42 nations that governs certain export controls for classified dual-use software and technology. The group eventually won exemptions for defensive cybersecurity activity. This allows defenders to share vulnerability data, conduct malware analysis, and coordinate incident response internationally without the threat of criminal prosecution. On Sunday, Moussouris joined more than 100 other cybersecurity leaders and signed an open letter urging the Trump administration to reverse the restrictions on Fable 5 and Mythos and restore cybersecurity firms' access to the advanced models. “To pull the best capabilities away from defenders without a good reason when our adversaries are rapidly advancing is dangerous,” they wrote. In her blog, Moussouris argues that there was no guardrail bypass or jailbreak. Defenders should be able to ask AI systems to find and fix bugs, and write tests to validate the patch, she said. Anthropic’s models were doing “the most valuable thing an AI model can do for defensive security: executing the find, fix, and test loop defenders run every day.” Removing the capability for models to respond to defensive requests makes AI systems “worse at finding bugs and verifying patches,” she continued. Plus, the US can’t extend export controls to open-weight systems or similar advanced models from China and other countries - and these systems will soon achieve Mythos-like capabilities, anyway. Anthropic and Google have both accused China-based rivals including DeepSeek of using “distillation attacks” to train their models by siphoning knowledge from American companies’ AI. Banning Anthropic’s advanced models is going to hurt defenders more than attackers, Moussouris warns. “Defense improves when defenders find the same bugs attackers find and fix them faster,” she wrote. “We need the best tools to defend against increasingly capable attackers in the AI era of cybersecurity.” The Register reached out to the Trump administration for comment on Moussouris' assertion, and we'll update this post if we hear back. ®

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Saudi Arabia v Uruguay: World Cup 2026 – live

⚽️ World Cup kick-off: 6pm EDT/11pm BST/8am AEST
⚽️ Spain 0-0 Cape Verde | Player guide | Bracketology

Saudi Arabia (4-4-2): Al-Owais; Abdulhamid, Al-Amri, Altambakti, Al-Harbi; Abu Al-Shamat, Al-Juwayr, Al-Khaibari, Kanno; Al-Buraikan, Al-Dawsari

Uruguay (4-2-3-1): Muslera; Cáceres, Varela, Olivera, Viña; Ugarte, Bentancur; Araújo, Valverde, Viñas; Núñez

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OnlyFans: Inside the Machine review – monumentally grim and unsexy TV

Amber Haque’s preposterously bleak film shows how hordes of men have turned the ethical answer to sex work into a sleazy nightmare – and how big tech is turning a blind eye. Sound familiar?

In the grounds of a huge house in Manchester, dozens of dejected-looking young men and women – none of them fully dressed – mill around supercars they do not own. Nearby, a young woman with a faraway stare touches her lips in a rough facsimile of sexual availability. Inside, a Twister board lurks next to a pile of discarded clothes.

The whole setup is preposterously depressing, a kind of Requiem for a Dream for the modern-day influencer, but it turns out that the whole thing was designed as a content day for OnlyFans models – a way for them to spiral through outfits and locations and poses at speed for content they can dole out to subscribers over the coming months. Done right, it will make them rich.

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Saka says he is gambling on fitness but ‘ready to go’ for England World Cup tilt

  • Tuchel warns forward’s fitness being carefully monitored

  • Saka keen to play but not to ‘go against the manager’

Bukayo Saka has admitted he is continuing to gamble on his fitness to play for England at the World Cup finals but said he “is ready to go” despite a nagging achilles injury.

The Arsenal forward came off the bench in England’s last warm‑up game against Costa Rica but the England manager, Thomas Tuchel, warned that Saka’s fitness is being monitored carefully. The 24‑year‑old player is believed to have picked up the injury during the Carabao Cup final against Manchester City in March and missed Arsenal’s next seven matches as a result. Since then, he has completed 90 minutes only once in five appearances and was substituted before the end of normal time in the Champions League final against Paris Saint-Germain.

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Wel.nl

Minder lezen, Meer weten.

Niet duidelijk wanneer vervuilende fabrieken Tata moeten sluiten

HAARLEM (ANP) - Het is nog niet duidelijk wanneer twee zeer vervuilende fabrieken van Tata Steel in IJmuiden zullen worden gesloten. De Omgevingsdienst Noordzeekanaalgebied is sinds een maand bezig met de officiële voorbereidingen om de vergunningen van de twee kooksgasfabrieken in te trekken. Het onderzoek loopt nog en de procedure moet zorgvuldig zijn, gaf de Noord-Hollandse gedeputeerde Anouk Gielen (Klimaat en Energie) aan in een overleg met Provinciale Staten.

De twee fabrieken zijn verouderd en overschrijden door de hoge uitstoot van schadelijke stoffen structureel de milieunormen. Het internationale staalbedrijf heeft zelf ook al aangegeven de fabrieken KGF1 en KGF2 versneld te willen sluiten, zonder een termijn te geven.

Een meerderheid van de partijen vindt sluiting noodzakelijk; vooral linkse partijen dringen aan op snelheid. De datum wordt pas bekend als het intrekkingsbesluit er is, aldus Gielen. Ze wees erop dat de provincie en omgevingsdienst al jaren werken aan een onderbouwing van het proces.


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Peter Kernwein posted a photo:

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Peter Kernwein posted a photo:

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Peter Kernwein posted a photo:

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