Why does antivirus software need updates?

Answer: New malware appears constantly

Old viruses become stronger — Wrong. Old viruses don't change. New malware variants constantly appear—antivirus needs updated definitions to recognize and block them.

New malware appears constantly ✓ — Correct! Malware evolves constantly—thousands of new variants daily. Antivirus uses: (1) Signature-based detection—database of known malware patterns. (2) Heuristic analysis—detecting suspicious behavior. (3) Machine learning—identifying new threats. Updates add new signatures and improve detection algorithms. Without updates, antivirus can't recognize new threats. Update frequency matters—daily updates recommended!

Updates increase scan speed — Wrong. Updates may improve performance, but primary purpose is adding new malware definitions to detect emerging threats.