LO5

• Anti-Virus scans and removes virus that could create a weakness that can allow access system
• Firewalls block access to unauthorised packets so that data cannot be accessed
• Anti-Spyware prevents spyware so that the system cannot be monitored
• Username/Passwords/Authentication so only authorised users can log on reducing the chances of others accessing the system
• Permissions/Levels of Access - only authorised users can gain access to a file reducing the chances of others accessing the files
• Encryption - scrambles data so it can’t be read without (decryption) key so even if gathered cannot be read.
• Privacy screens - avoid others seeing whats on the screen
• Shredding- sensitive documents shreaded so nobody can read it later on
• Biometrics are distinctive, measurable human characteristics like fingerprints, irises and voice.
• Biometrics reduce the risk of passwords being shared and used to verify a person
• Disadvantages of biometrics is that they can be unrealiable and forged
• What is RFID?


  Radio Frequency Identification
• How does RFID work?

  RFID readers use electromagnetic fields to detect tags or can be used to unlock doors in a key.
• Tokens in security can be used to verify someone as part of 2-factor authentication