Mobile Device Forensics: Cracking a High-Profile Corporate Fraud Case

The Case: A Business Executive’s Deception

In 2022, a high-ranking executive was suspected of falsifying financial records to embezzle company funds. While his laptop appeared clean, investigators knew the real evidence lay in his mobile device. At Kian Technologies, we teach that a mobile phone is a "Digital Witness" that never lies, even if messages are deleted.

Technical Extraction: Beyond the UI

Investigators performed a Physical Extraction of the device using advanced forensic tools. Unlike a standard backup, this allowed them to access the raw data bits on the flash memory. The analysis yielded:

• SQLite Database Recovery: Even though WhatsApp messages were deleted from the app, the records remained in the msgstore.db WAL (Write-Ahead Log) files. Experts recovered chats where the executive discussed the fraud with external co-conspirators.
• GPS & Geolocation Forensics: Mapping the suspect’s movements during key transaction dates proved he was at the location of the co-conspirators during the fraud execution.
• Encrypted App Decryption: Using forensic "Physical Imaging," the team bypassed the device passcode to access encrypted communication logs.

Legal Impact and Recovery

The recovered documents and emails were presented as "Smoking Gun" evidence. The executive was found guilty of colluding to falsify documents. This case serves as a benchmark for Mobile Forensics, highlighting that "Delete" doesn’t mean "Gone" in the eyes of a skilled forensic examiner.

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