"Assurance and control considerations for a mass password reset, ... there are several different scenarios that necessitate a mass password reset. This means that there are different levels of control or assurance an organization might require while performing a mass password reset. When SSPR mechanisms can be reliably used to provide assurance, organizations can use that feature to accelerate a mass password reset. However, there are situations where an organization may not want to use the existing SSPR solution. For example, when an advanced threat actor has abused the organization’s SSPR system, or where there is actual evidence of AD DS database exfiltration. In such a scenario the organization would likely not choose to use that mechanism to enforce the mass password reset because the threat actor could re-establish initial access or persistence via SSPR. Where an organization seeks a high degree of control and assurance for a mass password reset there will, unfortunately, be an element of manual intervention. However, with preparedness ahead of time, Microsoft Entra ID features such as a Temporary Access Pass, when combined with Conditional Access policies, can be used to automate some aspects of assurance and control. In any event where a high degree of assurance and control is desired, some level of manual intervention to verify users’ physical identities and the issuance of such temporary access passes is inevitable. In a subsequent post we will examine different Microsoft Entra ID features that can be used to accomplish this." https://msft.it/6046YhXQ6
Threats that involve the compromise of multiple privileged identities within the network may require a mass password reset as part of incident response. A mass password reset helps incident responders gain control of the identity plane, deny other avenues of access, and disrupt any persistence the attacker may have established in the environment. There are several variables and considerations for a mass password reset, and there is no one-size-fits-all solution. In this blog post, Microsoft Incident Response provides best practices in preparing for and performing a mass password reset: https://msft.it/6046YhXQ6
