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Threats to data

1. Preventative and remedial actions

   • Physical barriers- These include turning off computers and locking offices when the systems are unattended to prevent damage by people or the environment

2. Password control of access-. Passwords are sequences of characters, known only to the computer user, which allow access to a computer, network or application

3. Access levels-. These can be set up to allow individuals to have access to only specific levels of an application and to prevent unauthorised users

4. Anti-virus software- This is set up to intercept computer viruses before they can become resident on the computer. The software can isolate the virus, remove it and sometimes repair any damage.

5. Firewall. This is a piece of software that monitors all data arriving at your computer from the internet and all data leaving your computer. It stops anything that it thinks is harmful or unwanted (such as viruses, spam, Trojan horses and hackers

6. encryption. This is used to codify data so that it cannot be read by anyone who does not have the key to the code.

7. Personal safety

   • The dangers of identity theft and of revealing too much personal information on social networks and via instant messaging are often reported in the news
     • These threats can affect both your security and your reputation. Think about who has access to the information you put online
       • Before you put photos on your social networking profile, think about who might see them and whether you would mind
         • Use security settings to protect your privacy and identity
           • Remember that not everyone is who they claim to be. Criminals access social networking sites trying to fi nd out information about people.