Microsoft found malware that destroys PCs. Here's who's actually at risk

Microsoft discovered GigaWiper malware that overwrites hard drives multiple times and renders entire systems unusable by deleting partition entries and storage contents. PCWorld reports this sophisticated threat primarily targets organizations rather than home users, combining surveillance capabilities with irreversible data destruction. The malware integrates components from older threats like Crucio ransomware and includes a Go-based backdoor for remote system control and stealth operations. Microsoft has discovered a new piece of malware that not only spies on data but also renders entire systems unusable. The malware, known as GigaWiper, combines several destructive functions with a powerful backdoor for attackers. Security researchers at Microsoft Threat Intelligence first detected the activity back in October 2025. The recently published analysis reveals the full extent of the malware's capabilities.