Hard Drive Encryption Software for External Disks. Lockngo is the perfect security protection for any external disk. Any type and size. No installation to computer required! Disk with Lockngo can be connected to any computer. For Mac and Windows.Support of all major formats. No software installation required. Automatical disk locking. Fast encryption. Completely hides files on disk. Compatible with Windows 8 and Mac OS X Lion. Military Grade 256 bit AES Encryption.Full encryption for the most private files. Instant Lock.Command Line control. Remembers your password. Simple and intuitive. No data left exposed. Additional preferences.