Allow fallback to SSL 3.0 (Internet Explorer)
- Policy ID
- Advanced_EnableSSL3Fallback
- Scope
- Computer Configuration
- Supported on
- At least Internet Explorer 7.0
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Windows Components › Internet Explorer › Security Features
Description
This policy setting allows you to block an insecure fallback to SSL 3.0. When this policy is enabled, Internet Explorer will attempt to connect to sites using SSL 3.0 or below when TLS 1.0 or greater fails.
We recommend that you do not allow insecure fallback in order to prevent a man-in-the-middle attack.
This policy does not affect which security protocols are enabled.
If you disable this policy, system defaults will be used.
Options
Registry
ComputerHKEY_LOCAL_MACHINE
- EnableSSL3FallbackREG_DWORD