M&S cyber-attack: how to protect yourself from sim-swap fraud

By Alan Woodward, Professor, Department of Computer Science, University of Surrey
Daniel Gardham, Lecturer in Secure Systems, University of Surrey

Our mobile phone numbers have become a de facto form of identification, but they can be hijacked for nefarious purposes. Just such an attack may have been involved in the recent very damaging cyber-attack on Marks & Spencer (M&S).

The hack happened in April and forced M&S to stop taking online orders. It also caused disruption to some of its stores. The company has said that…

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