A knowledge base article about Should I take any precautions before travelling abroad? provided by the UC Berkeley IT Service Hub - Knowledge Portal
If you’re traveling internationally and need to log into UC Berkeley sites, you can use passcodes as your 2-Step verification method. You can do this in a number of ways:
You can get help from Service Desk when traveling. They will verify your identity remotely before they can assist you.
Email: calnet2-stephelp@berkeley.edu
Phone: 510-664-9000, option 1