The format must be set to Mac OS Extended (Journaled). Select the thumb drive in the list on the left and then click Erase. Open Disk Utility in the Utilities folder (click Go, Utilities). The thumb drive must be formatted before it can be encrypted Thumb drives are almost always formatted using the FAT filing system so that they work on PCs and Macs. Without the password though, it cannot be unlocked or accessed. This is totally transparent to you and the drive works as normal. Files are encrypted as they are written to the thumb drive and decrypted when they are read. The whole thumb drive can be encrypted and this is the most convenient way to secure your files. dmg file just slightly smaller than the capacity of the thumb drive, it will leave a bit of space into which you could put a text file with your email and phone number, and a request for the finder of the lost thumb drive to return it. This method has the advantage of enabling you to use part of the storage as normal and part as encrypted and secure.

dmg file without the password, so any files you put in it are safe. dmg was stored on the Mac’s disk, but all you would need to do is to copy it to the thumb drive after creating it. One method is to create an encrypted disk image - a. There are two ways to secure the files on a thumb drive and both involve encrypting them. The finder could then access your files, which could contain private information that you don’t want others to see.

They are handy for freeing up space on your Mac’s disk, and they are useful when you want to give someone a bunch of files, but don’t want to send them over the internet.Ĭount yourself lucky if you have not lost one because it is all too easy to do. With capacities up to 128GB, thumb drives (flash drives or pen drives), are convenient for storing files you want to move between computers, such as home and work. What if someone found your thumb drive? Follow these steps to secure your files and stay safe. USB thumb drives (flash drives) are great for carrying around files, but they are easily lost.

Format flashdrive for dmg