Malware
Malware is software designed to damage, disrupt, or gain unauthorized access.
Updated: 2026-03-05
Definition
Malware includes viruses, worms, trojans, ransomware, spyware, and other malicious programs.
It can steal data, encrypt files, create backdoors, or disrupt operations.
Key points
- Types: ransomware, trojan, worm, spyware
- Delivery: phishing, drive-by download, USB, exploits
- Defense: patching, EDR/AV, least privilege, backups
Common mistakes
- Assuming users will always spot phishing (needs layered defenses).
- No tested backups (ransomware impact becomes catastrophic).
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