6.6 - Logical protection/Digital security

Question 1

Usernames and Passwords

Answer 1

Strong usernames passwords - less chance of unauthorised users accessing a system.

Password: contain a mix of uppercase, lowercase letters, punctuation and numbers / long length and be changed regularly

Question 2

Anti Malware

Answer 2

scan, detect and remove any viruses from the system.

anti spyware:
removes spyware on an infected system so hackers cannot view personal data or monitor users.

organisations should install and regularly update anti virus and anti spyware programs.

Question 3

Firewall

Answer 3

prevents unauthorised access to a form of network by filtering data packets and block anything that is identified as harmful to the computer system or network. / block specific websites

Question 4

Encryption

Answer 4

converting data into an unreadable format so it cannot be understood without a decryption key.

Question 5

What is encryption at rest

Answer 5

Data is encrypted while it is being stored on a system or storage drive.

Question 6

What is encryption in transit

Answer 6

securing data as it is being transferred between systems on a network

Question 7

Tiered levels of access

Answer 7

Purpose: grant different types of permission to certain users / only authorised people can access and change certain files.

Different levels of file access:
- No access
- Read only : Allow a user to view but not edit
- Read/write: Allow a user to view and edit

Question 8

Obfuscation

Answer 8

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

Specialist software can be used to obfuscate data and convert it back into a human readable format.