Logical protection

Question 1

Logical protection

Answer 1

Refers to using digital methods of security to protect computer systems and data

Question 2

Usernames and passwords

Answer 2

They must be matched to minimise the chances of unauthorised users accessing a system.

Question 3

Passwords

Answer 3

Should contain a mix of upper and lowercase letters, punctuation and numbers. Should be of a substantial length (at least 8 characters)

Question 4

Antimalware

Answer 4

Antivirus scans a system and removes a virus else it could delete data and permit unauthorised access. Anti spyware removes spyware on an infected system so hackers cant view personal data or monitor users

Question 5

Firewall

Answer 5

Prevents unauthorised access to or from a network. It filters data packets and blocks anything identified as harmful. This can be a physical device of installed software

Question 6

Encryption

Answer 6

The conversion of data into an unreadable format so it cannot be understood if intercepted. It can be understood by authorised personnel with a decryption key.

Question 7

Tiered levels of access

Answer 7

Grants different types of permissions to certain users. This ensures that only authorised people can access and change certain files e.g. no access, read only, read write

Question 8

Obsfucation

Answer 8

When data is deliberately changed to be unreadable to humans but understandable to computers.