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Internet Security

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bassam abed

on 4 May 2014

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Transcript of Internet Security

Security token.
a six-digit code which randomly changes every 30–60 seconds.
built in mathematical computations and manipulate numbers based on the current time built into the device.
Internet Security
A tree branch of computer security specifically related to the Internet.
Involving browser security and network security.
Applies to operating system as a whole.
To protect data from intrusions or fraud.
Types of Security
Network layer security.
TCP/IP which stands for Transmission Control Protocol (TCP) and Internet Protocol (IP)
can be made secure with the help of cryptographic methods and protocols.
What is Internet Security?
Internet Protocol Security (IPsec).
designed to protect communication in a secure manner using TCP/IP.
provides security and authentication at the IP layer by transforming data using encryption.
Internet Security
Electronic mail security (E-mail)
Pretty Good Privacy provides confidentiality by encrypting messages to be transmitted or data files to be stored using an encryption algorithm
Signing an email message to ensure its integrity and confirm the identity of its sender
Encrypting the body of an email message to ensure its confidentiality.

controls access between networks.
screen network traffic and are able to block traffic that is dangerous.
act as the intermediate server between SMTP and Hypertext Transfer Protocol (HTTP) connections.
Malicious software

user can be tricked or forced into downloading software onto a computer that is of malicious intent.
come in many forms, such as viruses, Trojan horses, spyware, and worms.
programs that can replicate their structures or effects by infecting other files or structures on a computer.
programs that can replicate themselves throughout a computer network, performing malicious tasks throughout
Trojan horse
commonly known as a Trojan
software that pretends to be harmless
Full transcript