What is the importance of log analysis in forensic investigations?

Analyzing system logs is important during forensic investigations to identify and trace the source of cyber incidents because system logs contain a detailed record of activities and events on a system or network. By examining these logs, investigators can piece together a timeline of events, identify any suspicious or malicious activities, determine the source of the cyber incident, understand the extent of the compromise, and gather crucial evidence for attribution and prosecution if needed. System logs can provide valuable information such as login attempts, access times, IP addresses, commands executed, and much more, allowing investigators to reconstruct what happened during a security incident.