Data recovery articles #2

Technical guides on data loss prevention, storage failures and controlled data recovery methods.

June 6, 2026

Recovering Deleted or Overwritten Security Footage

What to do when CCTV footage has disappeared, appears deleted or may be overwritten by a recorder's retention loop.

June 6, 2026

Symptoms, risks and assessment approaches when a DVR or NVR hard drive becomes unreadable, noisy or no longer appears in the recorder.

June 4, 2026

How a laboratory distinguishes physical, logical and electronic damage before any attempt to recover data from storage media.

June 3, 2026

The real risks of factory data loss: vibration, dust, heat, power outages, aging storage and actions to avoid.

June 2, 2026

How vibration, impact and movement weaken hard drives, which symptoms require attention and how to avoid worsening a fault.

May 30, 2026

Why cloud storage does not replace a backup approach: synchronization, deletion, ransomware, access rights and restoration.

May 28, 2026

Why USB flash drives used on public or shared computers lose files, and how to retain the device before assessment.

May 26, 2026

Why an embedded aircraft SSD needs a cautious assessment: vibration, heat, power, the controller, encryption and controlled imaging.

May 21, 2026

How to prevent and manage data loss on an inspection drone memory card: card choice, writes, copying, archiving and actions to avoid.

May 20, 2026

What affects the cost and time frame of CCTV recovery: storage media, proprietary formats, urgency, the needed period, validation and handover.

May 20, 2026

Why footage can be missing from NVR and IP camera systems: network outages, local storage, NAS, memory cards, indexes and automated overwriting.

May 20, 2026

How to preserve CCTV footage that may be used as evidence through controlled imaging, timestamps, traceable handling, context and documented limits.