As the "agentic web" takes shape-billions of AI agents (often LLM-powered) autonomously transacting and collaborating-trust shifts from human oversight to protocol design. In 2025, several inter-agent protocols crystallized this shift, including Google's Agent-to-Agent (A2A), Agent Payments Protocol (AP2), and Ethereum's ERC-8004 "Trustless Agents," yet their underlying trust assumptions remain under-examined. This paper presents a comparative study of trust models in inter-agent protocol design: Brief (self- or third-party verifiable claims), Claim (self-proclaimed capabilities and identity, e.g. AgentCard), Proof (cryptographic verification, including zero-knowledge proofs and trusted execution environment attestations), Stake (bonded collateral with slashing and insurance), Reputation (crowd feedback and graph-based trust signals), and Constraint (sandboxing and capability bounding). For each, we analyze assumptions, attack surfaces, and design trade-offs, with particular emphasis on LLM-specific fragilities-prompt injection, sycophancy/nudge-susceptibility, hallucination, deception, and misalignment-that render purely reputational or claim-only approaches brittle. Our findings indicate no single mechanism suffices. We argue for trustless-by-default architectures anchored in Proof and Stake to gate high-impact actions, augmented by Brief for identity and discovery and Reputation overlays for flexibility and social signals. We comparatively evaluate A2A, AP2, ERC-8004 and related historical variations in academic research under metrics spanning security, privacy, latency/cost, and social robustness (Sybil/collusion/whitewashing resistance). We conclude with hybrid trust model recommendations that mitigate reputation gaming and misinformed LLM behavior, and we distill actionable design guidelines for safer, interoperable, and scalable agent economies.

Jensen Huang, the head of the world's most valuable company Nvidia, says King Charles III personally handed him a copy of a speech he delivered in 2023 that included a warning about the dangers of artificial intelligence. He said, there's something I want to talk to you about. And he handed me a letter, Huang told the BBC, speaking after receiving the 2025 Queen Elizabeth Prize for Engineering in a ceremony at St James's Palace. The letter was a copy of the speech delivered by the King in 2023 at the world's first AI Summit, held at Bletchley Park . In it the monarch said that the risks of AI needed to be tackled with a sense of urgency, unity and collective strength.

In'watershed moment', Tesla board to vote on Musk's $1 trillion package Tesla's board is set to vote on CEO Elon Musk's $1 trillion pay package as major proxy adviser firms urge shareholders to reject the deal. The vote is scheduled for Thursday and will determine whether Musk secures what is the largest compensation package in corporate history. These firms often influence large passive funds that hold significant stakes in the electric carmaker. Tesla has faced mounting challenges this year, with global sales declining and investor confidence wavering. In July, Tesla reported a 13.5 percent decline in sales in the United States. They jumped 7.4 percent in the third quarter ending in September compared with the same period the year before, as US consumers scrambled to take advantage of a $7,500 EV tax credit that was set to expire that month.

New POV video shows a mutually beneficial relationship between remoras and the gentle giants. Breakthroughs, discoveries, and DIY tips sent every weekday. In addition to its pod, the sizable cetacean generally hosts dozens of remoras. Also known as a suckerfish, these evolutionary wonders in the family hitch rides on whales in order to make a meal of the sea lice and other crustaceans that also make a home on the marine mammal's skin. To accomplish this, the remora possesses a distinctive, oval dorsal fin that functions like an adapted suction cup.

Doctor's husband who left daughter, 2, to die in hot car while watching adult movies DIES day he was to be locked up I keep hearing the same mortifying whisper about Meghan and Harry... their American dream is about to come crumbling down: MEGYN KELLY Baby girl with horrifying side effects, mom couldn't breathe and dad seriously sick... after simple error turned dream home into a death trap Super hot seductresses entrap Silicon Valley nerds and steal vital secrets... so we tracked one down and found out how Bryan Kohberger's staggering prison slush fund is revealed as prosecutors demand he give money to Idaho victims' families Why screaming female migrant who shouted'Help me, I have papers!' was arrested by ICE at Salt Lake City airport Inside Kate and William's forever home: Princess is kitting out Forest Lodge in her preferred'classic contemporary style' to create a'lovely but absolutely inoffensive' look Somali-American who said protecting illegal migrants from Trump was top priority LOSES bid to become America's wokest mayor Influencer Barbara Jankavski who was known online as'Human Barbie' dies age 31 My girlfriend's new body modification is repulsive. She says she did it for me... This Leftist election landslide was caused by the same vile disease that's triggered a GOP civil war. Famous American writer's son, 19, arrested over alleged plot to bomb Detroit gay bars in ISIS terror attack The murder that haunts the Kennedys: Martha Moxley's loved ones reveal their truth in the FREE The Crime Desk newsletter... as accused cousin cleared in killing breaks cover Taylor Momsen admits Gossip Girl role was'killing' her during'long battle' to quit hit series Inside Zohran Mamdani's woke, celebrity filled victory party after socialist won NYC mayoral election Ariana Grande looks worlds away from her'clean-girl look' as she rocks black curly hair and skinny jeans in a major throwback snap from 18 years ago Three astronauts already in space for six months are now stranded in orbit after their craft may have been damaged by dangerous debris floating around Earth . China's Manned Spaceflight Agency (CMSA) has revealed that crew from its Shenzhou 20 mission will need to stay on board the Chinese station Tiangong.

Breakthroughs, discoveries, and DIY tips sent every weekday. Japan is calling in its army to wrestle its ongoing bear problem . Last month, the country's Ministry of the Environment reported that Asian black bear or moon bear () and brown bear () populations have attacked over 100 people since March. With at least 10 fatalities among the tally, the government announced on November 5 that it is stepping up control efforts by deploying soldiers to Akita prefecture on the island of Honshu in northern Japan. In a statement to reporters, Akita's Governor Kenta Suzuki called the situation "desperate," noting that sightings and attacks are now occurring daily.

How doctor's husband died the day he was due to go to prison for killing daughter, 2, in hot car - as eldest daughter, 17, vows to continue lawsuit against widow Rising Republican's future now in tatters as he's blamed for electoral bloodbath I keep hearing the same mortifying whisper about Meghan and Harry... their American dream is about to come crumbling down: MEGYN KELLY Baby girl with horrifying side effects, mom couldn't breathe and dad seriously sick... after simple error turned dream home into a death trap I was an undercover seductress ensnaring the world's most powerful men. Famous American writer's son, 19, arrested over alleged plot to bomb Detroit gay bars in ISIS terror attack Trump's Ice Maiden steps in to save knifed billionaire's NASA nomination: 'Knock it off' Why screaming female migrant who shouted'Help me, I have papers!' was arrested by ICE at Salt Lake City airport Inside Kate and William's forever home: Princess is kitting out Forest Lodge in her preferred'classic contemporary style' to create a'lovely but absolutely inoffensive' look Somali-American who said protecting illegal migrants from Trump was top priority LOSES bid to become America's wokest mayor Emotional Christina Applegate reflects on boyfriend's shock death from drug overdose in rare interview My girlfriend's new body modification is repulsive. She says she did it for me... This Leftist election landslide was caused by the same vile disease that's triggered a GOP civil war. The murder that haunts the Kennedys: Martha Moxley's loved ones reveal their truth in the FREE The Crime Desk newsletter... as accused cousin cleared in killing breaks cover Taylor Momsen admits Gossip Girl role was'killing' her during'long battle' to quit hit series Inside Zohran Mamdani's woke, celebrity filled victory party after socialist won NYC mayoral election Warning to tourists as world's first ban on smoking cigarettes is enforced The Maldives has become the first nation in the world to impose a generational ban on smoking.

MP wants Elon Musk's chatbot shut down over claim he enabled grooming gangs An MP has called for Elon Musk's artificial intelligence (AI) chatbot to be shut down after it called him a rape enabler. The Grok chatbot made the post on X about SNP MP Pete Wishart, after a user asked it to comment on the member's opinion on whether there should be an inquiry into grooming gangs in Scotland. Mr Wishart said he was seeking legal advice over the deeply distressing accusation and called for Musk to recalibrate the bot to shut it down. The BBC has approached XAI, the parent company of X, for comment. I was genuinely shocked to be described in such an appalling and defamatory way, Mr Wishart said in a statement.

Last week, an American-Israeli company that claims it's developed proprietary technology to cool the planet announced it had raised $60 million, by far the largest known venture capital round to date for a solar geoengineering startup. The company, Stardust, says the funding will enable it to develop a system that could be deployed by the start of the next decade, according to Heatmap, which broke the story. As scientists who have worked on the science of solar geoengineering for decades, we have grown increasingly concerned about emerging efforts to start and fund private companies to deploy technologies that could alter the climate of the planet. We also strongly dispute some of the technical claims that certain companies have made about their offerings. This story is part of Heat Exchange, MIT Technology Review's guest opinion series offering expert commentary on legal, political and regulatory issues related to climate change and clean energy. Can "The Simpsons" really predict the future?

New York's new mayor Zohran Mamdani tells Trump'I have four words for you' in blistering victory speech quoting his socialist hero, bragging about'toppling a dynasty' and promising a'new dawn' Driver screaming'Allahu Akbar' ploughs in to pedestrians'trying to hit everyone he encountered' on French holiday island leaving ten injured This Leftist election landslide was caused by the same vile disease that's triggered a GOP civil war. Amazon signals it's finally fed up with Whole Foods' sluggish sales - and is making sweeping, controversial changes Why Mamdani's socialist revolution in New York has sparked a civil war for Democrats... and Trump is secretly loving it Simone Biles details all the plastic surgery she's had after her boob job this summer Inside Kate and William's forever home: Princess is kitting out Forest Lodge in her preferred'classic contemporary style' to create a'lovely but absolutely inoffensive' look REVEALED: Fattest states in America ranked... including region where three-quarters of residents are obese Now he's dead, here's the full story of what happened that day... and the ghastly aftermath no one knows about Shocking moment Mexico's president is groped by man who grabs her breasts and tries to kiss her Miss Universe contestant called'dumb' in humiliating dressing-down by official hits back with powerful speech as furious organisers condemn her treatment and he issues grovelling apology Hollywood A-listers may be blacklisted for'antisemitism' under Paramount's new anti-woke leadership Nepo baby turns heads at Glamour Women Of The Year Awards in a glitzy gold sequin feathered gown - but can YOU guess who her A-list mother is? New footage reveals the moments before football manager collapsed and died mid-match, leaving his players in disbelief, as it emerges he'complained about fish he had eaten' hours before Texas teen'tears masterpiece from wall at the Met in unhinged meltdown' before being handed in by his MOTHER Scientists have been faced with a huge dilemma, as research reveals that reducing air pollution has increased global warming . While smog kills millions of people every year, it also whitens clouds - making them more reflective. So by slashing air pollution, we're inadvertently diminishing the brightness of clouds, which are key regulators of global temperature.