This holiday season you should remain protective of your personal information and belongings to avoid any problem. To protect your privacy, do not share information to the people asking for it online or over the phone unless you’ve checked that the person is legitimate. Do not share your credit card number, SS number and bank account numbers. To check the identity of the caller, you can hang up and then try to call him back using the same number. Check more security tips from the source.
Source: KTVN