// MITRE ATT&CK
T1531 · Account Access Removal
Adversaries may interrupt availability of system and network resources by inhibiting access to accounts utilized by legitimate users. Accounts may be deleted, locked, or manipulated (ex: changed credentials, revoked permissions for SaaS platforms such as Sharepoint) to remove access to accounts.(Cit...
How to detect & mitigate it
Detecting Account Access Removal starts with your SIEM/EDR telemetry. Write a detection rule with the Sigma generator, analyze suspicious logs in the log analyzer, and place the technique on your coverage with the ATT&CK matrix.
Related techniques
T1561.002
Disk Structure Wipe T1498.001
Direct Network Flood T1491.002
External Defacement T1499.001
OS Exhaustion Flood T1485.001
Lifecycle-Triggered Deletion T1496.003
SMS Pumping T1499.003
Application Exhaustion Flood T1561
Disk Wipe
Disk Structure Wipe T1498.001
Direct Network Flood T1491.002
External Defacement T1499.001
OS Exhaustion Flood T1485.001
Lifecycle-Triggered Deletion T1496.003
SMS Pumping T1499.003
Application Exhaustion Flood T1561
Disk Wipe
Source: MITRE ATT&CK®. ATT&CK is a registered trademark of The MITRE Corporation. Content for educational purposes.