What are the common indicators of compromise in cyber incidents?

Organizations should look for the following signs or indicators to determine if a cyber incident has compromised their systems:

1. Unusual network activity: Sudden spikes in network traffic, unauthorized connections, or unusual data transfers can indicate a potential compromise.

2. Unexpected system behavior: If systems are slow, crashing frequently, or displaying strange errors that cannot be explained by routine issues, it might indicate a cyber incident.

3. Unauthorized access: Any signs of unauthorized access to sensitive data or systems, like new user accounts or login attempts from unusual locations, should raise alarms.

4. Changes in system settings: Modifications to system configurations, unauthorized software installations, or changes in user permissions could be indicators of a cyber breach.

5. Strange file modifications or deletions: If critical files are modified, deleted, or encrypted without authorization, it could be a sign of a cyber incident like a ransomware attack.

6. Unexplained data loss: Sudden loss of data or inability to access certain files can indicate a cyber incident, especially in the case of data breaches or ransomware attacks.

7. Phishing attempts or social engineering: Employees receiving suspicious emails asking for sensitive information or credentials could be a sign of a cyber incident targeting the organization.

8. Security alerts from monitoring tools: Alerts triggered by intrusion detection systems, antivirus software, or security monitoring tools can indicate a potential compromise that needs further investigation.

9. Reports of unusual login attempts or account lockouts: Multiple failed login attempts or frequent account lockouts can be