// MITRE ATT&CK
T1491.002 · External Defacement
Sub-technique of T1491 · Defacement.
An adversary may deface systems external to an organization in an attempt to deliver messaging, intimidate, or otherwise mislead an organization or users. [External Defacement](https://attack.mitre.org/techniques/T1491/002) may ultimately cause users to distrust the systems and to question/discredit...
How to detect & mitigate it
Detecting External Defacement 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 T1499.001
OS Exhaustion Flood T1485.001
Lifecycle-Triggered Deletion T1496.003
SMS Pumping T1499.003
Application Exhaustion Flood T1561
Disk Wipe T1565.001
Stored Data Manipulation
Disk Structure Wipe T1498.001
Direct Network Flood T1499.001
OS Exhaustion Flood T1485.001
Lifecycle-Triggered Deletion T1496.003
SMS Pumping T1499.003
Application Exhaustion Flood T1561
Disk Wipe T1565.001
Stored Data Manipulation
Source: MITRE ATT&CK®. ATT&CK is a registered trademark of The MITRE Corporation. Content for educational purposes.