Immunet is a cloud-powered free antivirus for Windows that leverages collective immunity — every user contributes to and benefits from a shared threat intelligence network. Acquired by Cisco’s Sourcefire team, it incorporates Cisco Talos Intelligence into its detection engine.

Key Features

• Cloud-powered real-time detection
• Collective Immunity network (community threat sharing)
• Cisco Talos Intelligence engine
• Fast scanning with minimal system impact
• Behavior-based ransomware protection
• Windows 10/11 compatible

Verdict

Immunet is an excellent choice for tech-savvy users wanting Cisco-level threat intelligence for free. Its cloud-only approach keeps it incredibly lightweight.