Three persistent beliefs about Windows security still shape user behavior in 2025 — that you must pay for antivirus, that Microsoft Defender is a catch‑all shield, and that staying on Windows 10 is safe for years to come — and each of these myths is now misleading in ways that materially affect...
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Windows 11 ships with a far stronger security baseline than its predecessors, but real-world attackers and configuration gaps still find workarounds—meaning Defender and Windows Security are necessary, not sufficient, for modern threat defense.
Background
Windows 11’s built-in...
