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Return to the guide Browse security topics

Choose the closest destination

These starting points cover the questions visitors most often have when a security article moves or a bookmarked URL becomes outdated.

Linux encryption basics

Review the differences between full-disk encryption, encrypted containers, protected archives, and file-level tools.

Start with Linux encryption

Portable and cloud files

Learn what changes when protected data is stored on removable media, synchronized through a cloud provider, or shared with another person.

Explore portable security

Locking versus encryption

Understand why hiding a folder or blocking edits is useful for access control, but does not provide the same protection as encryption.

Compare protection methods

Product compatibility reminder

The products discussed elsewhere on this site are not interchangeable. Folder Lock is designed around encrypted lockers, device synchronization, secure sharing, and private-data utilities. Folder Protect focuses on Windows access rules such as hiding an item or preventing it from being opened, changed, or deleted. The supplied product information does not identify a native Linux edition for either tool.

Folder Lock: Windows, macOS 13 or later, iPhone and iPad, and Android.
Folder Protect: Windows desktop systems.
Folder Lock Lite: basic Windows folder locking without encrypted lockers.