H&M stores in the UK experienced a significant IT outage, preventing customers from making payments.Speculation of a possible cyberattack arose due to a recent trend of such incidents targeting major British retailers.Sales were disrupted for about two hours in a London store, and the issue is being investigated with no confirmation of a cyberattack.Other retailers like Marks & Spencer and Co-op have recently faced cyberattacks, emphasizing the importance of cybersecurity measures.