Polymarket is a platform where people can bet on real-world events, political and otherwise. Leaving the ethical considerations of this aside (for one, it facilitates assassination), one of the issues with making this work is the verification of these real-world events. Polymarket gamblers have threatened a journalist because his story was being used to verify an event. And now, gamblers are taking hair dryers to weather sensors to rig weather bets.

There’s also insider trading: a lot of it.

Artists and writers argue scrappy nature of self-published booklets is incompatible with artificial intelligence

The self-published zine has long been central to cultural revolutions, from queer activism to Black feminism and the riot grrrl punk movement, producing titles such as Sniffin’ Glue and Sweet-Thang along the way. But now the traditionally analogue art form faces a new shift: artificial intelligence.

AI may seem incompatible with the these cult DIY booklets, but some creatives, designers and artists have begun to experiment with the technology, causing alarm in parts of the underground publishing world. It has been their Dylan-goes-electric moment.

To test the safety and security of AI, hackers have to trick large language models into breaking their own rules. It requires ingenuity and manipulation – and can come at a deep emotional cost

A few months ago, Valen Tagliabue sat in his hotel room watching his chatbot, and felt euphoric. He had just manipulated it so skilfully, so subtly, that it began ignoring its own safety rules. It told him how to sequence new, potentially lethal pathogens and how to make them resistant to known drugs.

Tagliabue had spent much of the previous two years testing and prodding large language models such as Claude and ChatGPT, always with the aim of making them say things they shouldn’t. But this was one of his most advanced “hacks” yet: a sophisticated plan of manipulation, which involved him being cruel, vindictive, sycophantic, even abusive. “I fell into this dark flow where I knew exactly what to say, and what the model would say back, and I watched it pour out everything,” he says. Thanks to him, the creators of the chatbot could now fix the flaw he had found, hopefully making it a little safer for everyone.

Researchers say works may have been incorrectly inscribed in 1700s, leading to centuries-long misunderstanding

They are two small sketches by the Renaissance master Hans Holbein: one has long been considered to be a portrait of Henry VIII’s doomed second wife, Anne Boleyn, and the other is of an unknown woman whose name was lost to time.

Now researchers using AI have discovered that the unnamed woman might be the tragic queen after all, while the other figure could in fact be Boleyn’s mother.

Exclusive: Brainchild of Dominic Cummings, Aria is aimed at funding ‘crazy’ scientific projects to benefit the UK

Britain’s “invention agency” has pledged £50m of UK taxpayer money to US tech companies and venture capital projects.

Dreamed up by Dominic Cummings to fund “crazy” ideas, the Advanced Research and Invention Agency (Aria) is meant to “restore Britain’s place as a scientific superpower”.

Exclusive: Varun Chandra’s talks with Google, Meta, Apple and others raise fears of ‘lobbying behind closed doors’

An influential government adviser close to Keir Starmer and Rachel Reeves held 16 undisclosed meetings with top US tech executives, the Guardian can reveal.

The No 10 business aide Varun Chandra discussed regulatory changes, AI and Donald Trump’s second administration with tech corporations during confidential meetings between October 2024 and October 2025. In one meeting he offered to help a top executive meet the prime minister directly.

Exclusive: amid unrest, President William Ruto promised to give all Kenyans access to healthcare. But the algorithm favours the rich, an investigation has found

An AI system used to predict how much Kenyans can afford to pay for access to healthcare, has systemically driven up costs for the poor, an investigation has found.

The healthcare system being rolled out across the country, a key electoral promise of President William Ruto, was launched in October 2024 and intended to replace Kenya’s decades-old national insurance system.

Phase Space pilot programme with NHS mental health trust used to calm anxiety around exams, ADHD and home troubles

Schools have begun deploying virtual reality to help pupils cope with stress caused by impending exams, attention deficit hyperactivity disorder or difficult home lives.

All 15 secondary schools in the London borough of Sutton are using VR headsets made by tech firm Phase Space in a pilot in conjunction with the local NHS mental health trust.

Exclusive: Biometrics commissioners say face-scanning not as effective as claimed and new laws needed to regulate use

• How does live facial recognition work and how many police forces use it?

• Guilty until proven innocent: shoppers falsely identified by facial recognition

Britain’s biometrics watchdogs have warned that national oversight of AI-powered face scanning to catch criminals is lagging far behind the technology’s rapid growth.

With the Metropolitan police almost doubling the number of faces they scan in London over the past 12 months and a rising use of the technology by retailers in the UK, Prof William Webster, the biometrics commissioner for England and Wales, said the “slow pace of legislation was trying to catch up with the real world” and “the horse had gone before the cart”.

An independent audit of the Met’s use of facial recognition technology (FRT) has been indefinitely postponed after the police requested delays.

Polling shows 57% of people believe the systems are “another step towards turning the UK into a surveillance society”.

A whistleblower claimed shop-based face-scanning systems had sometimes been misused by shop or security staff “maliciously” adding members of the public to watchlists.