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M0932 Multi-factor Authentication

Use two or more pieces of evidence to authenticate to a system; such as username and password in addition to a token from a physical smart card or token generator. Within industrial control environments assets such as low-level controllers, workstations, and HMIs have real-time operational control and safety requirements which may restrict the use of multi-factor.

Item Value
ID M0932
Version 1.0
Created 10 June 2019
Last Modified 30 March 2023
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Techniques Addressed by Mitigation

Domain ID Name Use
ics T0822 External Remote Services Use strong multi-factor authentication for remote service accounts to mitigate an adversary’s ability to leverage stolen credentials. Be aware of multi-factor authentication interception techniques for some implementations.
ics T0842 Network Sniffing Use multi-factor authentication wherever possible.
ics T0859 Valid Accounts Integrating multi-factor authentication (MFA) as part of organizational policy can greatly reduce the risk of an adversary gaining access to valid credentials that may be used for additional tactics such as initial access, lateral movement, and collecting information. MFA can also be used to restrict access to cloud resources and APIs.