How to encrypt/password protect USB flash drive in macOS?
Truecrypt is not secure. With GDPR (General Data Protection Regulation) now in full force, we have to make our drives being encrypted. Bitlocker is the truely secure encryption built-in Windows, however, Microsoft has not implemented Bitlocker client for macOS, but with the help of M3 Bitlocker Loader for Mac, we can still use Bitlocker to password protect/encrypt USB drive in macOS Mojave/High Sierra/Sierra and Mac OS X.
Tutorial to encrypt/password protect USB drive with Bitlocker in macOS
Step 1: Download and install M3 Bitlocker Loader for Mac.
Step 2: Insert USB drive into Mac computer.
Step 3: Launch M3 Bitlocker Loader for Mac.
Step 4: Click "Encrypt" button in toolbar of M3 Bitlocker Loader for Mac.
Step 5: Select USB drive and then click Encrypt.
Step 6: Enter the password.
Step 7: Save the recovery key.
Step 8: After Bitlocker drive encryption comppletes, the USB drive will be encrypted/password protected.
After encrypting USB drive with Bitlocker on Mac, we can use M3 Bitlocker Loader for Mac to read/write Bitlocker encrypted drive in macOS Mojave 10.14/High Sierra 10.13/Sierra 10.12 and Mac OS X 10.11/10.10/10.9/10.8/10.7 Operating Systems.
Bitlocker for Linux/Ubuntu
M3 Bitlocker Loader for Linux is a command line tool to encrypt USB flash drive or external hard drive with Bitlocker, mount Bitlocker encrypted drive in read-write mode.