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Kaspersky (Swiss data center, no mandatory account).

| Free Antivirus | Real-time protection | Firewall | Phishing | Ransomware rollback | |----------------|----------------------|----------|----------|----------------------| | (Win 10/11) | Yes | Yes (Windows Firewall) | Yes | Limited (OneDrive only) | | Kaspersky Free | Yes | No | Yes | No | | Avast One Essential | Yes | No | Yes | Yes (basic) | | Bitdefender Antivirus Free | Yes | No | Yes | No | free antivirus trial 90 days

Month 2: Test ransomware simulation (Casa de Papel simulator). Verify firewall blocks unauthorized outbound connections. Kaspersky (Swiss data center, no mandatory account)