Defences

Anti malware

• scans for malware

• Compares data to a database of malware

• Alerts user and requests actions such as deleting/stopping download of malware

Firewall

• scans incoming and outgoing data

• Compares traffic to criteria

• blocks unauthorised data

• Blocks incoming/outgoing traffic

encryption

• scrambles data using an algorithm so if intercepted it cant be understood

• Needs a key to decrypt

User access levels

• Data can be read/write by example

• Prevents accidental changes

• Limits data users can access

Anti spyware

• scans for malware

• Compares data to database of spyware

• Deletes spyware

• Stops download of spyware

Passwords/biometrics/authentication

• has to be correctly entered to gain access

• Strong password with letters/numbers/symbols makes it harder for a brute force attack to succeed

• Fingerprint is unique to individual

• Lock after a certain number of failed attempts

Two step authentication

• a code is sent to a user’s separate device

• Unauthorised person will need access to this device as well