Data at rest (stored data) is often the most vulnerable to theft. This 2026 guide reviews the best full-disk encryption solutions.

Full-Disk Encryption

BitLocker (Windows): Microsoft’s built-in encryption using AES-256. Integrates with TPM for secure key storage. BitLocker To Go extends protection to removable drives. Available in Windows 10/11 Pro at no additional cost.
FileVault 2 (macOS): Built-in full-disk encryption using XTS-AES-128 with a 256-bit key. Extremely easy to enable. Recovery key stored in iCloud or locally.
VeraCrypt: Leading open-source disk encryption. Creates encrypted containers or encrypts entire drives. Supports hidden volumes for plausible deniability. Cross-platform.
dm-crypt/LUKS (Linux): Built-in Linux full-disk encryption. Most configurable option for Linux users.

USB Encryption

BitLocker To Go, FileVault, and VeraCrypt all support encrypting removable USB drives. Hardware-encrypted USB drives (IronKey) provide protection even if physically disassembled.

Conclusion

Enable BitLocker/FileVault on all devices — it costs nothing and prevents data theft from lost or stolen devices.