revision 2

revision 2

1. cyberattacks

   • attempts to compromise a system or keep unauthorised digital data
     • phishing:sending fake emails or messages pretending to be from a bank or orginisation which tricks users into trying to log onto a fake website, stealing the login details.
     • hacking: unauthorised access to computer material.
     • malware: malicious softwear, designied to cause harm.
     • ransomware: malware that encrypts users files and demands a ransom to decrypt them.
     • botnet: a network of computers which contain malware allowing them to be controlled by a hacker.
     • keylogger: malware that records every keypress and sends it to a hacker for analysis.

2. cyber defences

   • techniques and systems to reduce the impact of cyberattacks
     • security software:often called antivirus software even though it deals with more than just viruses, scans computers for known malware and removes it. must be kept up to date with the latest malware definitions.
     • whitehat: hacking that is done with the authorisation of the company being hacked the hacker produces a report of all the vulnerabilities they found, so that the company can fix them.
     • greyhat: hacking done without authorisation of the company being hacked, but with good intentions often the company will be informed of how the hacker was able to gain access.
     • backups; keeping a copy of important data on different systems so that it can be reestored if the orrigional is damages