Business

Irish watchdog opens another Facebook probe, over data dump

Ireland's privacy regulator said Wednesday it has opened an investigation into Facebook after data on more than 500 million users was reportedly found dumped online, in a suspected violation of strict European Union privacy ...

Security

Microsoft defends against new threat to Exchange

Microsoft on Tuesday moved to defend against a dangerous new threat to Exchange email servers while the fight continued against hackers taking advantage of a flaw patched last month.

Internet

Data from 500 mn Facebook accounts posted online: reports

Data affecting more than 500 million Facebook users that was originally leaked in 2019, including email addresses and phone numbers, has been posted on an online hackers forum, according to media reports and a cybercrime ...

Software

A Chrome OS bug might reveal user location history

The Committee on Liberatory Information Technology has announced a long-standing Chromebook bug that could reveal user location history. Evidently already on the radar of Google, the platform has a feature allowing anyone ...

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E-mail

Electronic mail, often abbreviated as email or e-mail, is a method of exchanging digital messages, designed primarily for human use. E-mail systems are based on a store-and-forward model in which e-mail computer server systems accept, forward, deliver and store messages on behalf of users, who only need to connect to the e-mail infrastructure, typically an e-mail server, with a network-enabled device (e.g., a personal computer) for the duration of message submission or retrieval. Rarely is e-mail transmitted directly from one user's device to another's.

An electronic mail message consists of two components, the message header, and the message body, which is the email's content. The message header contains control information, including, minimally, an originator's email address and one or more recipient addresses. Usually additional information is added, such as a subject header field.

Originally a text-only communications medium, email is extended to carry multi-media content attachments, which were standardized in with RFC 2045 through RFC 2049, collectively called, Multipurpose Internet Mail Extensions (MIME).

The foundation for today's global Internet e-mail service was created in the early ARPANET and standards for encoding of messages were proposed as early as, for example, in 1973 (RFC 561). An e-mail sent in the early 1970s looked very similar to one sent on the Internet today. Conversion from the ARPANET to the Internet in the early 1980s produced the core of the current service.

Network-based email was initially exchanged on the ARPANET in extensions to the File Transfer Protocol (FTP), but is today carried by the Simple Mail Transfer Protocol (SMTP), first published as Internet Standard 10 (RFC 821) in 1982. In the process of transporting email messages between systems, SMTP communicates delivery parameters using a message envelope separately from the message (headers and body) itself.

This text uses material from Wikipedia, licensed under CC BY-SA