Flashcards
flash cards for computer science end of unit quiz
Flashcards do conjunto (19)
- 1Hackingunauthorized access to computer material
- 2Phishingsending a fake email or message pretending to be from a bank or organisation, which tricks users into trying to log on to a fake website, stealing the login details
- 3MalwareMalicious software, designed to cause harm
- 4Ransomwaremalware that encrypts users files and demands a ransom to decrypt them
- 5Botneta network of computers which contain malware allowing them to be controlled by a hacker
- 6Key loggermalware that records every keypress and sends it to a hacker for analysis
- 7Security softwareoften 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.
- 8White hat hackinghacking 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.
- 9Grey hat hackinghacking done without the authorisation of the company, but with good intentions, often the company will be informed of how the hacker was able to gain access
- 10Backupskeeping a copy of important data on a different system, so that it can be restored if the original is damaged
- 11Ciphera method of encrypting text
- 12Plaintextthe unencrypted data
- 13Ciphertextthe encrypted data
- 14Keysome information needed to encrypt/decrypt the data
- 15Crackto read encrypted data without being given the key beforehand
- 16Brute forcecrack a cipher by trying every possible key until successful
- 17Statistical attackcrack a cipher by using statistics and estimates of the most likely values
- 18Caesar ciphera simple cipher, where each letter is shifted a number of places up the alphabet
- 19Substitution ciphera simple cipher where each letter is replaced by a different letter
Informações
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- FlashCards sobre flash cards for computer science end of unit quiz, criado por Sam Dalby em 18-06-2021.
- Criado por
- Sam Dalby
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