: Completely deleting the malicious file or application from the device. What Is Antivirus Software? - Sophos
: This is the traditional method where the software compares file code patterns (signatures) against a database of known threats. It is highly effective for established malware but cannot detect "zero-day" threats that haven't been cataloged yet. How Does Antivirus Software Work? – AZMATH
When a threat is identified, the antivirus typically offers three responses: : Completely deleting the malicious file or application