Their free antivirus software offers essential protection against viruses, malware, ransomware, and phishing attacks. It provides real-time scanning, automatic updates, and basic web protection to guard against malicious websites. While it lacks advanced features such as a VPN, password manager, and parental controls found in Kaspersky’s paid plans, it is an excellent option for basic security needs on Windows, macOS, Android, and iOS devices without slowing down system performance.