1.4 - Network Security Flashcards
What is SQL injection?
Controlling a database via user input
What is social engineering?
Tricking humans
What is a brute-force attack?
Trying every combination
How do you lessen the risk of a brute-force attack working?
Long passwords and a limit on attempts
What is a Denial of Service (DoS) attack?
A computer repeatedly sending requests to a server causing the system to slow or crash
What is a Distributed Denial of Service (DDoS) attack?
A coordinated attack using a botnet of infected systems to overload a server with requests
What is malware?
A harmful program seeking to damage or gain unauthorised access to a computer system
What is a virus?
Self-replicating malware that attaches itself to infected files
What is a worm?
Self-replicating malware that finds weaknesses in software
What is a trojan?
A harmful program that looks like legitimate software so users are tricked into installing it to get backdoor access to a system
What does spyware do?
Secretly records the activities of a user to look for usernames, passwords and credit card information
What does a keylogger do?
Secretly records the key presses of a user to record usernames, passwords and credit card information
What does ransomware do?
Locks files using encryption so a user can’t access them and demands money from the victim to decrypt the data
What is data interception?
Data packets are intercepted by a third party and copied to a different location
What is penetration testing?
Simulating an attack to find weaknesses
