Windows 10 and TLS 1.3

Borislav Vitanov 81 Reputation points
2024-03-14T08:08:44.63+00:00

Hello everyone,

we are currently checking about implementing TLS 1.3 and I found a strange information by Microsoft.

According to the article:

https://learn.microsoft.com/en-us/windows/win32/secauthn/protocols-in-tls-ssl--schannel-ssp-

TLS 1.3 is supported starting in Windows 11 and Windows Server 2022. Enabling TLS 1.3 on earlier versions of Windows is not a safe system configuration.

Does someone knows why implementing TLS 1.3 is "not a safe system configuration"? For me this sounds really strange. I don't understand what might be the issue. We are currently with Windows 10 22H2 and already applied TLS 1.2.

Thanks

Windows 10 Security
Windows 10 Security
Windows 10: A Microsoft operating system that runs on personal computers and tablets.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
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  1. Karlie Weng 14,181 Reputation points Microsoft Vendor
    2024-03-15T05:42:06.1+00:00

    Hello,

    TLS 1.3 is designed with better security and faster connections in mind. Older Windows versions weren't made for it, so adding it might not be as secure because it may not fit perfectly into the system's network setup.

    If you force TLS 1.3 on an older Windows version, some apps that aren't prepared for this new version could stop working correctly or have unexpected issues.

    And Microsoft won't fix any bugs or security holes related to TLS 1.3 on unsupported systems. This means if a problem arises, your system stays vulnerable until you upgrade.

    If the Answer is helpful, please click "Accept Answer" and upvote it.