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The first time a customer buys goods from a retailer online they are asked to create an account. The sign-up process typically asks for:

• email address
• password
• telephone number
• delivery address
• billing address
• payment details

The details stored in the account are protected by the customer's email address (which acts as their username) and password. Storing this information means returning customers do not need to re-enter it.

Security

Goods are typically paid for using a credit or debit card. During the payment process communication between the retailers website and the bank takes place over Secure Sockets Layer (SSL), a technology that encrypts (scrambles) data.