Computer Security

Computer Security

Computer Security is the process of preventing and detecting unauthorized use of your computer.

Internet Security Threats

1)Virus is a type of malicious software program (malware) that, when executed, replicates by reproducing itself (copying its own source code) or infecting other computer programs by modifying them

Ex: Code Red, Nimba, SirCam, Melisa, Ripper, MDMA, One _Half

2) Spyware: It is a software that secretly collects user information while on the internet. Spyware can capture information like web browsing habits, email messages, usernames and passwords, and credit card information.

3) Adware: This program launches the advertisements in the form of pop ups. Usually the add words are based on the internet behavior of the user.

4) Spam: These are unwanted emails. In other words we can call them as unsolicited promotional mail.

5) Pharming: More advance method of Phishing in which the attackers create duplicate or similar looking website of other companies, to attract the customers and steal the data.

6) Cookies: These are program or information secretly stored in a computer especially the internet browser, which allows other users to monitor the internet activities of a person. These programs usually monitor the browsing nature of person so that the companies can create better marketing strategies.

7) Mail Bomb: An excessively large email (typically many thousands of messages) or one large message sent to a user’s email account. This is done to crash the system and prevent genuine messages from being received.

8) Scareware: A common trick cyber criminals use to make users think that their computer has become infected with malware to get them to purchase a fake application.

9) Sniffers: A software program used to monitor the traffic in a network. The hackers may use the sniffed data to access important confidential data.

10) Rootkit: A program designed to hide objects such as processes, files or Windows registry entries (often including its own).

11) Phishing: This is acquiring the personal and sensitive information of a person through official looking emails. Users of online banking and e-commerce websites are more prone to this attack.

12) Spoofing : It is a type of scam where an intruder attempts to gain unauthorized access to a user’s system or information by pretending to be the user.

Firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules.

Adware, or advertising-supported software, is any software package that automatically renders advertisements in order to generate revenue for its author.

Anti-virus software is a program or set of programs that are designed to prevent, search for, detect, and remove software viruses, and other malicious software like worms, trojans, adware

Read More Computer Awareness Study Notes


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