Endpoint Security

Best Antivirus Software 2026: Tested & Compared

Best antivirus software in 2026 is not what it was two years ago. I test these products for a living, and this year the landscape shifted hard. Ransomware attacks jumped 74% in 2025. AI-powered malware started evading signature-based detection. I watched fileless attacks slip past tools that used to catch everything on my test rigs. The antivirus you picked in 2024 might not cut it anymore. I have run every major suite on my lab machines over the past 14 months — measuring detection rates against live malware feeds, benchmarking system performance hit, and stress-testing every bundled feature people actually use.