You may decide to create a portable PHR on a USB flash (thumb) drive. If you do, it is crucial that the PHR is secure, encrypted and protected with a password.
Here is some good advice from the Miller School of Medicine, University of Miami:
Flash Drive Security – Three Basic Rules.
The most important rule for flash drive security — or for the security of any portable storage media — is also the simplest to state:
- Minimize the amount of sensitive information you keep on it. The ideal amount is zero.
If you can follow the first rule, you don’t need to read any further. If you must keep sensitive information on a flash drive, then the second and third rules are critical:
- Keep the flash drive safely in your possession or otherwise locked up in a safe place, just like any valuable object.
- Use a drive with built-in access control and encryption protection, and use that feature. Don’t count on your ability to never lose the drive, or never have it stolen.