Caller ID is a service offered by phone companies that allows consumers to avoid unwanted phone calls by displaying caller names and phone numbers. Unfortunately, the caller ID feature can sometimes be manipulated by so called "Spoofers." Spoofing is when a caller deliberately transmits false information to your caller ID display to disguise their identity. It is often used as part of an attempt to trick someone into giving away personal information so it can be used in fraudulent activity or sold illegally. 

To protect yourself from spoofing, be careful about responding to requests for personal information over the phone. You should never give out information such as account numbers, Social Security numbers, mother's maiden names, passwords or other identifying information to unexpected or suspicious callers. 

Armstrong would never contact you by phone and ask for personal information. If a company representative contacts you by telephone and requests personal information, hang up and call that company directly. When conducting business by telephone, Armstrong representatives will validate your identity prior to discussing your account information.

You should always be suspicious if you are pressured to supply information immediately. You can never be too cautious when it comes to your personal information.