➀ Activision suspended Call of Duty: WWII servers after hackers exploited unpatched RCE vulnerabilities, gaining unauthorized PC control;
➁ The 2017 game's P2P matchmaking system and outdated anti-cheat tech (pre-Ricochet) amplified security risks;
➂ Hackers triggered Notepad pop-ups, forced shutdowns, and illicit content injections, prompting Microsoft Store removal despite Steam/Game Pass availability.