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Joe Tidy
Cyber correspondent, BBC World Service
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The disruption being caused by the wave of cyber attacks connected UK retailers has been evident for weeks. Empty shelves, cancelled online orders, the information of millions of customers stolen.
What has been overmuch little wide is who is responsible, with the companies and authorities lone giving constricted details.
But, present - successful their archetypal interrogation - the National Crime Agency (NCA) has indicated wherever their suspicions lie, and named the notorious cyber-criminal corporate Scattered Spider arsenic a cardinal portion of their investigation.
The radical is eye-catching for a fig of reasons. Firstly, they are young, immoderate of them teenagers. And 2nd they are known to beryllium autochthonal English speakers - the astir precocious illustration cyber criminals thin to travel from different countries, specified arsenic Russia and North Korea.
There has speculation they person been progressive successful the UK retail hacks - but this is the archetypal clip the constabulary person confirmed that anticipation is being actively investigated.
"We are looking astatine the radical that is publically known arsenic Scattered Spider, but we've got a scope of antithetic hypotheses and we'll travel the grounds to get to the offenders," Paul Foster, caput of the NCA's nationalist cyber-crime unit, said successful a caller BBC documentary.
"In airy of each the harm that we're seeing, catching whoever is down these attacks is our apical priority," helium added.
The hacks person been carried retired utilizing DragonForce, a level that gives criminals the tools to transportation retired ransomware attacks. However, the hackers pulling the strings person inactive not been identified and nary arrests person been made.
Paul Foster, who leads the NCA's nationalist cyber-crime unit
Some cyber-experts accidental the hackers show the traits of Scattered Spider, a escaped assemblage of often young individuals who organise crossed sites similar Discord, Telegram and successful forums, astir apt located successful the UK and US.
Although the NCA says it is exploring each parts of the cyber-crime ecosystem, it excessively is looking successful the aforesaid direction.
"We cognize that Scattered Spider are mostly English-speaking but that doesn't needfully mean that they're successful the UK - we cognize that they pass online amongst themselves successful a scope of antithetic platforms and channels, which is, I guess, cardinal to their quality to past beryllium capable to run arsenic a collective," Mr Foster said.
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M&S has been deed with ransomware, which has scrambled the company's servers rendering machine systems useless. The precocious thoroughfare elephantine is inactive struggling to support shelves stocked and has halted online buying for weeks. Hackers person besides stolen lawsuit and worker information from the company.
At Co-op, unit took systems offline to forestall a ransomware corruption but a immense magnitude of lawsuit and unit information was stolen and is being held to ransom. Operations astatine the firm's supermarkets and ceremonial services person been severely affected.
It is not known what is happening astatine Harrods but the institution admitted it had to propulsion machine systems offline due to the fact that of an attempted cyber-attack.
When the hackers down the M&S and Co-op attacks anonymously contacted the BBC past week, they declined to accidental whether oregon not they were Scattered Spider.
'Tools readily available'
Cyber-security researchers astatine CrowdStrike formed the sanction "Scattered Spider" due to the fact that of the group's sporadic nature, but different cyber-companies person fixed the clump nicknames including Octo Tempest and Muddled Libra.
The radical was besides linked to high-profile attacks including connected 2 US casinos successful 2023 and Transport for London past year.
And successful November, the US charged 5 British and American men and boys successful their twenties and teens for alleged Scattered Spider activity. One is 23-year-old Scottish antheral Tyler Buchanan, who has not made a plea, and the remainder are US based.
NCA investigators volition not accidental however the retail hackers person managed to breach unfortunate organisations but earlier this month, the National Cyber Security Centre issued guidance to organisations urging them to reappraisal their IT assistance table password reset processes.
"Calling up IT assistance desks is simply a maneuver that Scattered Spider seems to favour and they usage societal engineering techniques to manipulate idiosyncratic into doing thing similar clicking connected a nexus oregon resetting someone's relationship to a password they tin use," Lisa Forte, from cyber-security steadfast Red Goat, explained.
In the BBC documentary, a erstwhile teen hacker who was arrested 9 years agone and present works successful cyber-security, said helium was not amazed that teenagers could beryllium down the hacks.
"It wouldn't astonishment maine - rather [the] opposite. The tools are readily disposable and it's precise casual to leap online and hunt consecutive away. You tin consciousness a spot untouchable but for what end? You're gonna beryllium arrested 99% of the time," helium said.