Antivirus software enhances security for desktop PCs, laptops, and mobile devices, protecting against threats like phishing, ransomware, and malware. Modern solutions provide alerts for untrusted websites and conduct regular scans. Bitdefender Total Security is recommended as the top antivirus, compatible with multiple platforms and offering features like anti-phishing protection and a built-in VPN. Norton Antivirus Plus provides real-time protection for one device and includes a firewall and cloud backup. McAfee offers antivirus protection across various platforms with additional features like a VPN and password manager. Surfshark provides basic antivirus functionality within its VPN packages. ESET Protect is tailored for small to medium-sized businesses, offering customizable security solutions. AVG offers a robust free antivirus option with thorough scanning capabilities. Prices for these antivirus solutions vary, with some offering free plans and others requiring annual subscriptions.