E-mail security. Conceptual computer illustration of an @ sign on a chain depicting electronic mail (e-mail) security. This sign forms part of all e- mail addresses. A laptop computer and binary digits (zeros and ones), the language of computers, are also seen. E-mail is part of the internet, the global network of computers able to send and receive information to and from one another. Confidential information or transactions on the internet can be made secure by encoding the data using encryption.
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