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MediumSigmaHQ Nasreddine Bencherchali (Nextron Systems)

Old TLS1.0/TLS1.1 Protocol Version Enabled

Detects applications or users re-enabling old TLS versions by setting the "Enabled" value to "1" for the "Protocols" registry key.

Detection logic

Detection requirements

Log source product: windows
Log source category: registry_set

Known benign triggers

Legitimate enabling of the old tls versions due to incompatibility

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
techcommunity.microsoft.com/t5/windows-it-pro-blog/tls-1-0-and-tls-1-1-soon-to-be-disabled-in-windows/ba-p/3887947	Unclassified	Only this detection cites it

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