Topic 4 - network security

Question 1

What is a virus?

Answer 1

A malware which installed without your knowledge. Can spread to other computers if an infected file is sent to someone else.

Question 2

What is a worm?

Answer 2

A worm is a standalone program which does not need to attach itself to an existing program in order to spread

Question 3

What is a Trojan?

Answer 3

Spread by things like email. The user is invited to click on a link for some routine or interesting purpose, which then executes a program which may, for example, give the controller unauthorised access to that computer.

Question 4

what is social engineering?

Answer 4

The context of information security means tricking or persuading individuals into revealing confidential or personal information ie. Passwords or bank details.

Question 5

What is phishing?

Answer 5

Phishing emails are designed to steal money, get login details, or steal identity. Inviting email to click on link. Asks you to enter data - bank details.

Question 6

What is meant by human error?

Answer 6

People are often a weak point in security systems and criminals have engineered methods to take advantage of human error and vulnerability.