University IT recently discovered that the encryption statuses of macOS High Sierra (10.13) devices were not being reported accurately in some cases. Now that the software bug has been corrected, owners of unencrypted devices that are subject to the university's encryption requirement will begin receiving MyDevices notifications on Tuesday, May 22. With the 30-day grace period provided by MyDevices, device owners will have until June 21 to encrypt.
The easiest way to encrypt is to use the Stanford Whole Disk Encryption tool and instructions (see How to Install Stanford Whole Disk Encryption for Mac).
To manually determine whether a macOS High Sierra device is encrypted, go to System Preferences -> Security & Privacy -> FileVault, and check to see that "FileVault is turned on..."
If you have questions or need assistance, please submit a Help ticket or contact the IT Service Desk at 650-725-4357 (x5-HELP).