I've just bought a stick so deliberately because it is encrypted not only on software (like the cheap memory sticks) but about hardware. That is, it has its own chip for encryption internally, making it harder to crack. This technique is also used with me to work, then, is the professional version. In addition, you can set that the stick itself extinguished when you have made a certain number of incorrect password attempts. The stick feels too massive and high quality. So make backup fun and is just a lot safer than a backup on an external hard drive. This stick I can safely drop from a certain height, where a hard drive gives up her mind.