How Email Works?
Email or electronic mail is an online technology which was created in 1971. The usage of email has rapidly increased from then and is now a major part of some people's lives. Email is essentially a message that is sent to an individual post box on a mail server where it waits until an email client picks it up. Someone can only send an email by being connected to an email server, such as Outlook Express, as long as their computer is connected to the internet. Another way someone can send an email is through a browser based client such as the websites Hotmail and Yahoo.
An email system essentially allows you to:
- see a list of messages in your mailbox, showing the sender's name, subject of the message and the date and time the email was sent to you
- selecct individual messages to view
- compose messages
- add attachments to emails
The Risks of Email
When you open an email you could get a virus or trojan horse or trojan. A computer virus is a computer program that can replicate itself and spread from one computer to another. The term "virus" is also commonly, but erroneously, used to refer to other types of malware, including but not limited to adware and spyware programs that do not have a reproductive ability. A Trojan horse, or Trojan, is a type of malware that masquerades as a legitimate file or helpful program possibly with the purpose of granting a hacker unauthorized access to a computer. Trojans do not attempt to inject themselves into other files like a computer virus. Trojan horses may steal information, or harm their host computer systems. Trojans may use drive-by downloads or install via online games or internet-driven applications in order to reach target computers. The term is derived from the Trojan Horse story in Greek mythology because Trojan horses employ a form of social engineering, presenting themselves as harmless, useful gifts, in order to persuade victims to install them on their computers.
No comments:
Post a Comment