The notorious hacking group, Scattered Spider is believed to be behind the attack. A cyber security company has told Sky News the group is "one of the most dangerous and active groups" they are monitoring.
There've also been cyber attacks against Harrods and the Co-Op which are being investigated?
On today's Sky News Daily Niall Paterson talks to our science and technology reporter, Mickey Carroll, about Scattered Spider and what can be done to tackle cyber gangs.
Producer: Natalie Ktena
Editor: Wendy Parker
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