Never give private information, such as your Social Security number, account or credit card numbers, passwords, etc. over the phone unless you initiated the call.
If you receive an automated call or a call from someone claiming to be a credit union employee and they ask for your account information (such as your credit card number, account number, etc.) do not give them any information. Even if the caller has one identifying piece of information (such as your Social Security number), the call is not legitimate. Do not provide any additional account information or any sensitive or personal information. The credit union will not call you and ask for this information.
Don't agree to any offer or prize where you have to pay a registration or shipping fee, or send money, to claim the "prize." Don't be pressured to make an immediate decision.