Network Security and Systems Software part I Flashcards
What is a virus?
A form of malware that is installed without your knowledge. It imbeds itself in programs, infecting them. It then can spread to other users.
What is a worm?
A standalone program that scans the internet automatically looking for computers to infect
What is a trojan?
A trojan is a program that masquerades as having a legitimate purpose but actually has malicious intentions. It is often spread via email
what is social engineering?
tricking or persuading people into revealing personal information
List three signs that someone should lookout for when checking if an email is phishing?
- Spelling and punctuation errors
- The email not being addressed to the user personally
- Sense of urgency
What is blagging?
the act of knowingly or recklessly obtaining r disclosing personal data without consent
What is a brute force attack?
An attack in which a list of passwords is tried until access is gained to the account
What is a DoS attack?
These are attacks to prevent legitimate users from accessing a website. One way of this is to flood a network with useless traffic
List 2 methods that can prevent data theft
- Destroying paper documents when they are no longer needed
- Logging off computers when not in use
What is an SQL injection?
a technique that exploits security weaknesses in a website. It does this by inserting malicious code into a database field on a website
What is penetration testing?
A company deliberately breaking into their system to see the faults, and then attempt to solve them
List 2 ways that anti-malware software can protect a computer
- It prevents harmful documents from being installled on the computer
- It prevents important files, such as the OS from being deleted
List 2 things that a firewall does
- prevents unauthorised access to or from a private network
- stop computers on a network from accessing specific sites
List three ways a password can be made secure
- at least eight characters long
- uses numbers symbols and letters
- do not share with others
What are user access levels?
a setting that should be set for disks folders and files, so users can only access what they need to
