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Learning to Attack and Defend: Adaptive Red Teaming of Language Models via GRPO

arXiv:2606.09701v1 Announce Type: new Abstract: AI red teaming must continually adapt to evolving attackers and defenders. Reinforcement learning offers a promising approach to discovering novel attacks, and co-training methods can produce more robust defenders in tandem. Recent works have demonstrated the efficacy of attacker-defender co-training by applying PPO and DPO, but report that GRPO is unstable in this setting.

arXiv CS 1d ago

Magistrate sanctioned after threatening to give defendant a ‘good hiding’

Magistrate sanctioned after threatening to give defendant a ‘good hiding’ Paul Gibson admitted he ‘lost his composure’ in response to the outburst from the dock - Bookmark A magistrate suggested he would give a defendant a “good hiding” after they shouted about being jailed, a misconduct ruling has revealed. Paul Gibson “lost his composure” in response to the outburst from the dock during a “difficult and stressful” sentencing hearing, sparking an investigation into his conduct. He has now...

The Independent UK 9d ago

'Beyond our capacity' to defend sea trade lanes, Shoebridge says

Greens senator says Australia cannot defend sea trade lanes, rejecting AUKUS reasoning Sun 7 Jun 2026 at 10:54am In short: David Shoebridge says Australia is too small to be able to defend global sea trade lanes. The Greens senator says pursuing AUKUS only obliges Australia to join a US-China conflict, and the nation should instead focus on diplomacy. Australia is pursuing an agreement with the United States to acquire three in-service Virginia-class submarines.

ABC Australia 3d ago

Rob Rinder's tears over mum, 22, shot and burnt to death in duvet after he defended accused

EXCLUSIVE: Rob Rinder's tears over mum, 22, shot and burnt to death in duvet after he defended accused Former defence barrister turned TV personality Rob Rinder tells the Mirror about the one crime he'll never forget, 20 years on... When Rob Rinder successfully defended a man accused of murder, he sighed with relief as they both walked triumphantly from court. It’s also a moment that’s haunted him for 20 years.

Daily Mirror 11d ago

How did the DC Defenders get a retired champ back ...

Andre Mintze went the extra mile to boost the DC Defenders in their UFL playoff semifinal game: He took paid time off from his day job to come out of retirement. The Defenders took down the Orlando Storm 28-22 on Sunday to advance to the UFL Championship. It was an upset -- the Storm were the four-team bracket's No. 1 seed and DC, with a 5-5 regular-season record, was the last team in the field -- and Mintze wasn't going to miss it for the world.

ESPN 1d ago

Defenders Pacho, Hincapie headline Ecuador World Cup squad

Defenders Pacho, Hincapie headline Ecuador World Cup squad June 1 : Paris St Germain's Willian Pacho came up against Arsenal's Piero Hincapie in the Champions League final on Saturday but the defenders will be on the same side at the World Cup after being named in the Ecuador squad by coach Sebastian Beccacece. AC Milan full back Pervis Estupinan has also been called up, while Chelsea defensive midfielder Moises Caicedo providing a strong backline with some added protection. Caicedo is...

Channel News Asia 9d ago

Senegal drop defenders Mbow, Camara to finalise World Cup squad

Senegal drop defenders Mbow, Camara to finalise World Cup squad June 2 : Senegal coach Pape Thiaw dropped defenders Moustapha Mbow and Ilay Camara from his preliminary squad to finalise his 26-man line-up for the World Cup by FIFA's deadline on Monday. Paris FC centre half Mbow and Belgian-born Anderlecht fullback Camara, who has won three caps, were named in Thiaw's 28-man wider squad on May 21. Mbow won his first cap when he played the second half off the bench in the 3-2 friendly loss to...

Channel News Asia 8d ago

SEC defends Musk settlement over Twitter, saying it reflects 'compromises'

SEC defends Musk settlement over Twitter, saying it reflects 'compromises' June 1 : The U.S. Securities and Exchange Commission defended its settlement with Elon Musk over his purchase of Twitter shares, saying it reflected "compromises" and was not tainted by collusion, after the judge overseeing the case said the accord raised "red flags." In a filing in the Washington, D.C. federal court, the SEC also said in a footnote that the settlement if approved will allow Musk to publicly deny its...

Channel News Asia 8d ago

Pentagon defends banning reporters from press office by turning it into a classified room: ‘Journalists no longer permitted’

Pentagon defends banning reporters from press office by turning it into a classified room: ‘Journalists no longer permitted’ The Trump administration said the switch-up was due to Pentagon speechwriters needing to ‘routinely handle classified material’ - Bookmark - CommentsGo to comments The Pentagon has defended banning reporters from its press office by turning it into a classified room. In the Trump administration’s latest move to hinder the media’s access to the Defense Department, the...

The Independent World 8d ago

US defender Richards in race to be fit for World Cup after ankle injury

US defender Richards in race to be fit for World Cup after ankle injury May 31 : Chris Richards' hopes of playing for the United States in the World Cup on home soil hang in the balance because of an ankle injury, with coach Mauricio Pochettino leaving the defender out of the squad for a warm-up friendly against Senegal on Sunday. Richards tore two ligaments in his ankle while playing for Crystal Palace in a 2-2 Premier League draw with Brentford this month and did not feature in the club's...

Channel News Asia 10d ago