Archie Norman says the hackers were "seeking to stop customers shopping at M&S" but their motive was "partly, undoubtedly, ransom or extortion".
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The Papers: Horizon scandal's 'tragic toll' and 'sacked Gregg'
A report on the Post Office scandal dominates the front pages of Wednesday's newspapers.
Instagram wrongly accuses some users of breaching child sex abuse rules
It was "horrible", "stressful" and "isolating" those affected tell BBC News.
Trump and Netanyahu meet for a second time amid Gaza ceasefire talks
Second meeting this week comes as US Middle East envoy Steve Witkoff suggests Israel and Hamas have one remaining issue in negotiations.
Jury-free trials recommended to save courts from 'collapse'
Many criminal cases should be decided by judges to reduce the backlog, a senior judge recommends.
After Diddy: Why hip-hop is still struggling to have its own 'MeToo' moment
The Combs verdict in itself is unlikely to lead to wider changes in the industry, according to insiders
Gemma Collins weight-loss drug advert banned
The star illegally advertised prescription-only weight loss drugs, the advertising watchdog found.
Action needed to halt exodus of firms leaving UK, says CBI
The boss of the CBI says he would support cutting the allowance on cash ISAs to encourage more people to invest in shares.
World Cup 2026 'most polluting ever' claims report
Next year's Fifa World Cup in the United States, Canada and Mexico is set to be "the most climate-damaging" in the tournament's history, according to new research by environmentalists.
Trump delays tariffs as the rest of the world plays hardball
The US president reveals his poker "tell" by showing he is open to delays to secure trade deals.
19 forwards & £600m later... is Joao Pedro the frontman Chelsea need?
Chelsea's search for a centre-forward has been far, wide and expensive - but has Joao Pedro already shown he could be the answer?
More than 100 injured as wildfire rages near Marseille
About 800 firefighters are at the scene, France's interior minister says, and will battle the blaze through the night.
More than 100 injured as wildfire rages near Marseille
About 800 firefighters are at the scene, France's interior minister says, and will battle the blaze through the night.
Ex-Bangladesh leader authorised deadly crackdown, leaked audio suggests
Sheikh Hasina authorised lethal force against protesters, according to leaked audio verified by the BBC.
King and Macron toast 'ever closer' UK-France ties at state banquet
Emmanuel Macron and his wife Brigitte are in the UK for a three-day trip.
Watch: Macron's day with the Royal Family
The French president met the Prince and Princess of Wales, the King and Queen and dignitaries on the first day of his state visit.
US will hike tariffs on copper to 50%, Trump says
Similar threats are looming over pharmaceuticals, lumber and semiconductors.
Pension triple lock to cost three times initial estimate
The official forecaster warns public finances are in a "relatively vulnerable position" due U-turns.
MPs vote to establish independent regulator for men's football in England
MPs vote to back the Football Governance Bill and establish an independent regulator to oversee the men's game in England's top five divisions.
Why small-time criminals burned a London warehouse for Russia's mercenary group Wagner
Five men have now been convicted for their part in the arson attack, which caused £1m of damage.
Alcaraz masterclass ends Norrie's Wimbledon hopes
Two-time defending champion Carlos Alcaraz ends British hope Cameron Norrie's Wimbledon run to set up a semi-final against fifth seed Taylor Fritz.