1. Year 10 – Chapter 4 – Computer Networks Lesson 5: Network Security Starter Task – Data Encryption ABCDEFGHIJKLMNOPQRSTUVWXYZ 1234567891011121314151617181920212223242526 Encrypted WordsDecrypted Word 8-5-12-12-15 13-1-14-3-8-5-19-20-5-18 14-5-23-20-15-14 14-5-20-23-15-18-11

2. Lesson 5: Network Security Sony Security Breach - http://www.youtube.com/watch?v=l0d6u7pEDgwhttp://www.youtube.com/watch?v=l0d6u7pEDgw Watch the video based on the network security breach at Sony. Describe what happened to Sony: What happened to the data? How did this breach effect the network and the gamers?

3. Lesson 5: Network Security Network and Data Security – Methods to improve security Preventing Unauthorised Access to the Network Username and strong passwords including letters and numbers

4. Lesson 5: Network Security Network and Data Security – Methods to improve security Methods to improve network security How will this method improve network security? Firewall Data Encryption Explain who could use data encryption to improve the security of data?