29584793
Descrição
Mapa Mental por lewis dear, atualizado more than 1 year ago
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Criado por lewis dear
mais de 3 anos atrás
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Cybersecurity Revision
- Cyberattacks
- Phishing
- definition: sending a afake email or message pretending to
be from a bank or organisation, which tricks people into
trying to log on to the fake website, stealing their login
details
- definition: sending a afake email or message pretending to
be from a bank or organisation, which tricks people into
trying to log on to the fake website, stealing their login
details
- Malware
- Ransomware
- definition: malware that
encrypts users files and
demands a ransom to
decrypt them
- definition: malware that
encrypts users files and
demands a ransom to
decrypt them
- Botnets
- definition: a network of
computers which contain
malware allowing them to be
controlled by a hacker
- definition: a network of
computers which contain
malware allowing them to be
controlled by a hacker
- Keyloggers
- definition: malware that
records every keypress and
sends it to a hacker for
analysis
- definition: malware that
records every keypress and
sends it to a hacker for
analysis
- Definition: malicious
software, designed to cause
harm
- Ransomware
- Attempts to compromise a
system or obtain unauthorised
digital data (hacking)
- Phishing
- Cyber defences
- Security Software (antivirus)
- definition: 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
- definition: 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
- white hat hacking
- definition: – 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
- definition: – 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
- grey hat hacking
- definition: – hacking 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
- definition: – hacking 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
- backups
- definition: keeping a copy of
important data on a different system,
so that it can be restored if the
original is damaged
- definition: keeping a copy of
important data on a different system,
so that it can be restored if the
original is damaged
- Techniques and
systems to reduce the
impact of cyberattacks
- Security Software (antivirus)
- Encyption
- Plaintext- the unencrypted data
- Cipher- a method of encrypting text
- Ciphertext- the encrypted data
- Key- some information needed to
encrypt/decrypt the data
- Crack- to read
encrypted data
without being given
the key beforehand
- Brute force- crack a cipher
by trying every possible
key until successful
- Statistical attack- crack a cipher
by using statistics and estimates
of the most likely values
- Caesar cipher: a simple cipher,
where each letter is shifted a
number of places up the
alphabet
- Substitution Cipher- a simple
cipher where each letter is
replaced by a different letter
- Plaintext- the unencrypted data
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