Central Authentication Service (CAS)

Protect your campus computing account login ID and passphrase. Use them only for campus websites and campus online services.

UC Davis will never ask you to provide your passphrase via phone or email. A message that asks you to is probably a phishing scam. Delete it without responding.

Be extremely wary of messages that ask you to enter your passphrase into a non-UC Davis website. If you have doubts about a message or website, or think you have been tricked into submitting your passphrase or personal information, call your local IT service desk:

UC Davis Campus: IT Express at 530-754-HELP (4357)
UC Davis Health: Technology Operations Center at 916-734-HELP (4357)

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