00387nas a2200145   4500000000100000008004100001260001900042100002500061700001400086700002100100700001900121700001700140245007700157490000700234       2025                            d  cSeptember 20251 aEkaterina Botchkovar1 aKexin Cui1 aOlena Antonaccio1 aRobert Perkins1 aDavid Maimon00aThe organized activities of ransomware groups: A social network approach0 v82