E-commerce paralyzed, stock market crash... Mark & Spencer victim of a massive cyberattack for several days

The British giant has been unable to counter this attack, which has targeted it since April 21, and has had to suspend part of its activities.
By Felix d'OrsoMark & Spencer is in turmoil. The British retail giant has been paralyzed by a major cyberattack from which it has been unable to escape for several days, according to British media outlets including The Guardian .
The brand's problems began on Monday, April 21st. That day, several stores reported issues with contactless payments and online order pickup. While this type of incident is usually quickly resolved, Mark & Spencer's teams were clearly experiencing some problems, as the difficulties persisted on Friday, April 25th. The brand was even forced to halt online orders, which represent approximately £3.8 million per day (nearly €4.5 million).
The company has since decided to "temporarily take some of its systems offline" as part of its "proactive incident management." "We are working hard to restore normal availability across the entire site," it said on Wednesday, as quoted by the Guardian. In just over a week, the brand's stock market value has plummeted by more than £600 million.
The scale of the attack was such that British police announced that detectives from its cybercrime unit, assisted by colleagues from the National Crime Agency, had begun searching for the perpetrators. According to the Guardian, the perpetrators were the Scattered Spider hacking group, which has previously made a name for itself with attacks on hotels and luxury hotels owned by the American group MGM Resorts and Caesars casinos, among others.
While the incident remained unresolved on Wednesday, supermarket shelves were beginning to empty, according to the British daily.
Le Parisien