A recent email scam seems to be targeting various UCLA departments. An email will arrive - seemingly from a dean or chair - with some message such as please respond. The scammers apparently looked up names of faculty officials and emails of those in their departments. It's not hard to do since the information is readily available on university websites.
Presumably, the scammers are looking for passwords or other sensitive information. If you receive a cryptic message from someone at UCLA, you can get in touch with that person by phone, or by a separate email using the university email address, to verify if the message is legit. Otherwise, delete it.