Question

Explain in brief any 2 security threats to Computer networks.

Answer 1

Computer virus
We’ve all heard about them, and we all have our fears. For everyday Internet users, computer viruses are one of the most common threats to cybersecurity. Statistics show that approximately 33% of household computers are affected with some type of malware, more than half of which are viruses.

Computer viruses are pieces of software that are designed to be spread from one computer to another. They’re often sent as email attachments or downloaded from specific websites with the intent to infect your computer — and other computers on your contact list — by using systems on your network. Viruses are known to send spam, disable your security settings, corrupt and steal data from your computer including personal information such as passwords, even going as far as to delete everything on your hard drive.

. Rogue security software
Leveraging the fear of computer viruses, scammers have a found a new way to commit Internet fraud.

Rogue security software is malicious software that mislead users to believe there is a computer virus installed on their computer or that their security measures are not up to date. Then they offer to install or update users’ security settings. They’ll either ask you to download their program to remove the alleged viruses, or to pay for a tool. Both cases lead to actual malware being installed on your computer.
. Trojan horse
Metaphorically, a “Trojan horse” refers to tricking someone into inviting an attacker into a securely protected area. In computing, it holds a very similar meaning — a Trojan horse, or “Trojan,” is a malicious bit of attacking code or software that tricks users into running it willingly, by hiding behind a legitimate program.

They spread often by email; it may appear as an email from someone you know, and when you click on the email and its included attachment, you’ve immediately downloaded malware to your computer. Trojans also spread when you click on a false advertisement.

Once inside your computer, a Trojan horse can record your passwords by logging keystrokes, hijacking your webcam, and stealing any sensitive data you may have on your computer.

Answer 2

Answer:

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