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Microsoft Defender vs F-Secure Total: catalog facts
Microsoft Defender	F-Secure Total
Paid Included with a paid Microsoft 365 subscription, with a free trial available.	Paid Paid subscription bundling VPN, password manager and antivirus.
Windows, macOS, Android, iOS	Windows, macOS, Android, iOS, Browser extension
Manages security for several family members and devices from one dashboard Dark web monitoring for more than 60 types of personal information	Bundles several protection tools under one subscription instead of separate purchases Covers desktop and mobile devices from one account
Requires a Microsoft account and a Microsoft 365 subscription Closed source, with protection tied to Microsoft's cloud services	Bundled VPN, antivirus and password manager subscription can cost more than picking best-of-breed tools separately Closed-source software, so internals cannot be independently audited
Downloadable app	Downloadable app, Browser extension
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.