Unit 3_Question 1

This unit has provided interesting information regarding to information systems safety and cryptography, that are very helpful for me. I have posted my pictures, provided person email address and private information on the social networking before without any concern about the potential risks or any security protection. The unit helped me to have in-deep understanding about the different ways to security information. In fact, there are a lot of different ways human can leave traces of information with the use of technologies, such as name, date of birth, email address, face, passwords…

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