A hacking group called DragonForce takes credit for ransomware attacks targeting British retailers M&S, Harrods, and Co-Op over the past two weeks (Ryan Gallagher/Bloomberg)

Ryan Gallagher / Bloomberg:
A hacking group called DragonForce takes credit for ransomware attacks targeting British retailers M&S, Harrods, and Co-Op over the past two weeks  —  - Cybercrime spree targeted Marks & Spencer, Co-Op, Harrods  — Hacking gang takes credit for attacks on the retailers