Malware is a general term for malicious software intentionally designed to disrupt computer operation, steal data, or gain unauthorized access to systems. This category encompasses diverse programs, including viruses, ransomware, spyware, and worms, each with distinct methods of propagation and payload. Malware typically operates by compromising system security mechanisms, allowing it to execute code without explicit user consent. Modern mitigation efforts involve employing layered security defenses, such as behavioral monitoring, firewalls, and sophisticated endpoint detection and response systems, alongside maintaining comprehensive software patching to minimize vulnerabilities.