Free Antivirus Programs Immunet Protect and 360 Total Security Offer Cloud‑Based Protection

Immunet Protect is a free antivirus that relies on cloud technology to keep its threat database continuously updated. The program uses a "Collective Immunity" system, so new malware detected by any user is instantly shared with all users. It requires less than 10 MB of disk space and minimal RAM, aiming not to slow down the computer.

360 Total Security, also free, combines two proprietary scanning engines (360 Cloud Scan Engine and QVM II) with optional external engines from Avira and Bitdefender. It provides real‑time protection, quarantine, and system‑optimization tools while allowing users to customize scanning depth and resource usage.