Read the following article: Encryption backdoors: http://www.wired.com/news/conflict/0,2100,47635,00.html. You should be aware that backdoors can exist not only in software but also as viruses and spyware.

1. Define what a 'software' or 'encryption backdoor' is. (2 marks)

2. Why did some government officials call for backdoors on data scrambling products after 9/11? (2 marks)

3. Describe 2 possible ethical implications of backdoors. (4 marks)

4. Evaluate which is more important. (2 marks)