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Antivirus is one of your best weapons against malware—the computer viruses and other malicious software that threaten your privacy, security, or both. Antivirus programs use multiple technologies to identify and remove these threats from your device. They scan for threats based on an extensive list of known cyberattacks and use artificial intelligence (AI) to spot new attacks as they emerge.

Virus detection: Antivirus programs use several methods to identify malware, including signature-based detection, which compares files against a list of known attack patterns, and heuristic analysis, which looks for actions that may indicate an attack. Some antivirus programs also use sandboxing, which executes suspicious files in a virtual environment to analyze their behavior.

Malware prevention: Antivirus programs prevent malware from infecting your device or network by scanning for threats, monitoring network traffic, and blocking unauthorized activities. Some antivirus programs also perform junk file cleanup, removing duplicate files and unused programs to free up space.

Antivirus programs protect against various types of attacks, including ransomware, phishing scams, botnet formation, and identity theft. They also help businesses avoid data breaches that can result in financial, legal, and reputational consequences. Many antivirus programs also offer tools that help small and medium-sized businesses manage their cybersecurity. These include password managers, streamlined driver updates, a junk file cleaner, and features that help organizations meet industry compliance requirements. Some antivirus programs can also monitor and detect if your device is infected with malware and can remotely remove the infection for you.