""Attackers don't need to know you're using it. They just have to poke the system to find out. Fundamentally, organizations keep legacy protocols active not because they want to, but because they fear breaking a mission-critical legacy app,""
""In crypto terms, NTLMv1 isn't just old, it's archaeological,""
""NTLMv1 is still enabled, not because it is needed today, but because it was needed once, and nobody is quite brave enough to turn it off and see what breaks,""
""Scan for its use, find out why it is in use, register it as a high risk and get to work removing it, with achievable deadlines,""
NTLMv1 remains enabled in many environments because organizations fear disabling legacy protocols will break mission-critical applications. Microsoft has recommended migration to NTLMv2 and Kerberos for more than two decades, yet legacy authentication support persists out of caution and historical dependency. NTLMv1 is cryptographically weak and described as effectively archaeological. Attackers can probe systems to discover and exploit legacy protocol support without prior knowledge. Organizations should scan for NTLMv1 usage, identify legitimate dependencies, classify its presence as high risk, and implement removal plans with achievable deadlines to mitigate exposure.
Read at Computerworld
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