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Encryption

When you send important personal information such as your name, address and credit card details over the Internet, it is converted into a code or encrypted. This is a security measure that prevents other people from reading your information. We take all reasonable care to prevent unauthorised access to your personal data by using industry-standard secure socket layer (SSL) encryption. Find out more about Secure Sockets Layer.

Exchange

An exchange is the central point at which all the phones in an area are connected to the BT network.