<ul data-eligibleForWebStory="false">UK NCA arrests 4, including 3 teens, linked to cyberattacks on M&S, Co-op, and Harrods.Arrested individuals seized in London and West Midlands for Computer Misuse Act offenses.Suspects face charges of blackmail, money laundering, and organized crime participation.Attacks caused major disruptions and financial losses for affected businesses.DragonForce group behind attacks, stealing data and demanding ransom from victims.