A man who was beaten with a hockey stick by a Grand National trainer while walking a dog on his land has described the sentence as "unduly lenient" and said he was challenging it through official channels.

Martin Dandridge, 72, was repeatedly struck during the night-time assault in Llancarfan, Vale of Glamorgan, by Richard Evan Rhys Williams, 54, known as Evan Williams.

Dandridge's arm was broken during the attack in December 2024, leaving him with "ongoing pain" in his forearm.

Williams was sentenced to three years in prison on Tuesday, but Dandridge said he had "challenged the leniency" through a scheme overseen by the Attorney General's office.

In a victim impact statement, Dandridge, from Swindon, said he thought he was "going to die" during the attack.

"That moment is still vivid in my mind," he added.

Dandridge also said the assault has had a lasting physical and mental impact, and that he struggles with "the memory of feeling completely helpless and defenceless".

"Sadly, because of the assault and what has followed, I don't feel like the same person I was before," he said, adding that he still has problems with his left forearm and hand.

Last month, a jury at Cardiff Crown Court found Williams guilty of causing grievous bodily harm with intent.

Sentencing him on Tuesday, Recorder Angharad Price described it as an "appalling offence".

"You had a choice that night. You could have waited and let the police deal with the situation but instead you urgently raced to the paddock to deal with it yourself.

"It is never acceptable to take the law into your own hands."

Dandridge told the BBC he believes Williams's sentence was "unduly lenient given the aggravating features in the case", including the fact he had used as a weapon, and the injuries that were caused.

He said he would challenge it through the Unduly Lenient Sentence scheme, which allows anyone to request a review of Crown Court sentences if they believe them to be too low.

A spokesperson for the Attorney General's Office said law officers have received a request for Richard Evan Rhys Williams's sentence to be considered under the scheme.

They have 28 days to decide if they think a case is too lenient, and if so can request the Court of Appeal to consider.

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Finance ministers, central bankers and financiers have expressed serious concerns about a powerful new AI model they fear could undermine the security of financial systems.

The development of the Claude Mythos model by Anthropic has led to crisis meetings, after it found vulnerabilities in many major operating systems.

Experts say it potentially has an unprecedented ability to identify and exploit cyber-security weaknesses – though others caution further testing is needed to properly understand its capabilities.

Canadian Finance Minister François-Philippe Champagne told the BBC that Mythos had been discussed extensively at the International Monetary Fund (IMF) meeting in Washington DC this week.

"Certainly it is serious enough to warrant the attention of all the finance ministers," he said.

"The difference is that the Strait of Hormuz – we know where it is and we know how large it is… the issue that we're facing with Anthropic is that it's the unknown, unknown."

"This is requiring a lot of attention so that we have safeguards, and we have processes in place to make sure that we ensure the resiliency of our financial systems," he added.

Mythos is one of Anthropic's latest models developed as part of its broader AI system called Claude, a rival to OpenAI's ChatGPT and Google's Gemini.

It was revealed by Anthropic earlier this month, when developers responsible for testing AI models and their performance of so-called "misaligned" tasks – which go against human values, goals and behaviour – said it was "strikingly capable at computer security tasks".

Citing concerns it could surface old software bugs or find ways to easily exploit system vulnerabilities, Anthropic has not released the model.

Instead it has made Mythos available to tech giants like Amazon Web Services, CrowdStrike, Microsoft and Nvidia as part of an initiative called Project Glasswing – which it calls an "effort to secure the world's most critical software".

On Thursday, Anthropic released a new version of an existing model, Claude Opus, saying it would allow Mythos' cyber capabilities to be tested in less powerful systems.

Concerns raised about Mythos may exceed chatter around previous AI models, but some cyber-security experts have questioned how justified they are – especially given the model has not been tested by the wider industry to see how capable it actually is.

The UK's AI Security Institute has been given access to a preview version of it, and has published the only independent report into the model's cyber-security skills.

Its researchers noted it was a powerful tool able to find many security holes in undefended environments, but suggested Mythos was not dramatically better than Claude's predecessor, Opus 4.

"Our testing shows that Mythos Preview can exploit systems with weak security posture, and it is likely that more models with these capabilities will be developed," the report authors said.

It is also not the first time an AI developer has claimed the capabilities of its models means they should not be released – something critics argue is a tactic to build hype.

In February 2019, OpenAI cited similar fears when it chose to stagger the release of GPT-2, an earlier version of its models which now power its biggest tool ChatGPT.

Top bankers are to be given access to the model in advance to test out their systems.

The chief executive of Barclays, CS Venkatakrishnan, told the BBC: "It's serious enough that people have to worry.

"We have to understand it better, and we have to understand the vulnerabilities that are being exposed and fix them quickly."

He added that "this is what the new world is going to be" – referencing a much more connected financial system, with both opportunities and vulnerabilities.

While developer Anthropic has said the model has already exposed multiple security vulnerabilities in some critical operating systems, financial systems and web browsers, governments and banks are being offered access in advance of its public release to help protect their own systems.

Bank of England governor Andrew Bailey told the BBC the development had to be taken very seriously: "We are having to look very carefully now what this latest AI development could mean for the risk of cyber crime."

He added: "The consequence could be that there is a development of AI, of modelling, which makes it easier to detect existing vulnerabilities in sort of core IT systems, and then obviously cyber criminals – the bad actors – could seek to exploit them."

The US Treasury confirmed it had raised the issue with its major banks encouraging them to test out their systems, before any public release of Mythos by Anthropic.

Financial industry sources indicated that another prominent US AI company could soon release a similarly powerful model but without the same safeguards.

James Wise, a partner at Balderton Capital, is chair of the Sovereign AI unit, a venture capital fund that will invest in British AI companies, backed by £500m of government funding.

He said Mythos is "the first of what will be many more powerful models" that can expose systems' vulnerabilities.

His unit is "investing in British AI companies that are tackling that – companies working in AI security and safety", he told the BBC's Today Programme.

"We hope the models that expose vulnerabilities are also the models which will fix them."

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The Duke and Duchess of Sussex have spoken to survivors and emergency responders from the Bondi Beach shooting, on the fourth day of their Australian visit.

Volunteer lifeguards and community leaders met the couple at the beach in Sydney where 15 people were killed and 40 injured at a Hannukah event in December.

The couple have been visiting eastern Australian cities, including Canberra and Melbourne.

Prince Harry and Meghan arrived at Bondi Surf Bathers' Life Saving Club on Friday morning, where they spoke to Jessica Chapnik Khan and Elon Zizer, who both survived the shootings while shielding their children.

Bondi lifeguards, who were hailed as heroes for protecting members of the public during the attack, also met the pair.

Representatives of the Sydney Jewish Museum, which is opening an exhibition dedicated to the attack, also attended, describing Prince Harry and Meghan's visit as "really special".

The couple were later welcomed by fans who had lined the steps of the Sydney Opera House, where they boarded a boat for a sailing event hosted by Invictus Australia.

The couple met veteran Joel Vanderzwan at the harbour, who presented them with customised flip-flops featuring the messages 'G'day Hazza' and 'G'day Megs'.

After accepting the gifts, Harry joked that he normally receives "budgie smugglers" from Invictus Australia.

The couple then headed out onto the water on a vessel designed to be wheelchair-accessible, so injured veterans could board.

In 2018, Prince Harry announced that Australia would host the Invictus Games during his royal tour, a competition he founded in 2014 for wounded military veterans.

It is the couple's first trip to Australia since that 2018 tour.

Michael Hartung, chief executive of Invictus Australia, described Harry and Meghan's return to Sydney Harbour as a "full-circle moment".

The couple are no longer working royals and have been visiting the country in a private capacity.

Meghan appeared on Friday at a women-only weekend retreat at a Sydney hotel, tickets for which started at A$2,699 (£1,430) per person.

Tickets that included a group photo with her cost A$3,199 (£1,696).

Security was tight, with limited media access.

On their last night in Sydney, Prince Harry and Meghan attended a rugby game between the New South Wales Waratahs and Moana Pasifika.

The couple sat next to Phil Waugh, CEO of Australian Rugby Union, who invited them to the event.

Harry last attended a rugby game in Sydney 23 years ago, where he watched England win the World Cup.

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