Digital Forensic Investigation Reveals Insider Data Theft in Banking Sector
Published on: 08 Jul 2025
In 2023, a prominent financial institution discovered unusual data transfers from one of its servers. Suspicious activity pointed towards potential insider data theft. The bank’s cybersecurity team initiated a digital forensic investigation to uncover the root cause and extent of the breach.
The forensic experts used a combination of log analysis, file recovery, and endpoint forensics to track the insider’s actions. They found that a disgruntled employee had copied sensitive customer data to an external USB device over several months.
Key forensic techniques included:
Timeline reconstruction using file metadata and system logs
Analysis of USB device connection logs to confirm data exfiltration
Recovery of deleted files to uncover hidden evidence
Correlation of network traffic to detect unauthorized external communications
The investigation led to disciplinary action and improved internal monitoring policies. This case highlighted how digital forensics is essential in detecting and mitigating insider threats.
The forensic experts used a combination of log analysis, file recovery, and endpoint forensics to track the insider’s actions. They found that a disgruntled employee had copied sensitive customer data to an external USB device over several months.
Key forensic techniques included:
Timeline reconstruction using file metadata and system logs
Analysis of USB device connection logs to confirm data exfiltration
Recovery of deleted files to uncover hidden evidence
Correlation of network traffic to detect unauthorized external communications
The investigation led to disciplinary action and improved internal monitoring policies. This case highlighted how digital forensics is essential in detecting and mitigating insider threats.
