I have a physical external hard drive containing personal backups, but the files are disorganized and I would like to sort them. I currently spend most of the day at work, where there is a shared company computer available. Personal computers are not allowed at the workplace, so I was wondering whether connecting my drive and viewing or rearranging files could cause copies, cached data, thumbnails, or other information to be stored on the work computer. I would not intentionally copy or move the files onto its internal storage. Could workplace IT or security software access the drive, and might connecting it violate company policy?
4 Answers
It is safest not to connect a personal drive to a work computer at all. Even if you do not copy files manually, the operating system and security tools may scan the drive, create thumbnails or metadata, record the device connection, or quarantine something it considers suspicious. More importantly, the company may prohibit unapproved removable media, and violating that policy could create disciplinary problems.
Assume that anything connected to a company computer can be monitored or logged. Endpoint security software may inspect files on a USB drive before allowing access, and IT could at least see that the device was connected. Whether complete file contents are cached depends on the system, but you should not rely on privacy or assume nothing is written locally.
Even without a specific warning about external drives, shared work computers are intended for business use. Using one to manage personal files provides very little benefit compared with the possible security, privacy, and employment risks, so this is best done on your own equipment.
The malware risk goes both ways: a personal drive could contain an infected file, and connecting it could expose personal data to workplace scanning. Some organizations also have strict rules about removable storage for compliance and security reasons. Ask your manager or IT for permission first—or, better yet, wait and use a personal computer.

Understood. I’ll organize the drive using my own computer instead.