1.4- Network Security Flashcards
What is malware?
Malicious software- software designed to delete or change files on a computer.
VIRUS, WORM, SPYWARE, TROJAN HORSE
What is social engineering?
Tricking people into breaking security procedures to break into a network
What is a brute force attack?
Program tries all possible combinations of characters to find password
What is a denial of service attack?
Computer(s) used to prevent server from performing its task by bombarding the server with requests.
What is data interception and theft?
Where data is intercepted during transmission, using software called packet sniffer which examines data packets as they travel
What is SQL injection?
SQL code is entered as data input to cause errors or unintended operations
What is penetration testing?
Authorised users probe network for potential weaknesses
What is anti-malware software?
Detects malware, prevents malware being installed, removes malware from system
ANTI VIRUS, ANTI SPYWARE, ANTI PHISHING
Anti malware is reactive, meaning can’t recognise any new malware so has to be updated
What is a firewall?
Monitors traffic going in and out of a computer or network. Firewall policy decides whether to allow or block packets. Can be on computer or on router.
What are user access levels?
Determine facilities a user has access too, so users only access what they need and cannot meddle elsewhere
What are passwords?
A collection of characters for user authentication
What is encryption?
Files are scrambled using a key meaning they are unintelligible to anyone without the key
