In the first lesson, we learnt about the dangers of revealing our personal information as the public can read them. For example, if we upload our e-mail address or our mobile phone numbers online, others can spam and send messages, play prank calls or flood our inbox with non-sensical messages. Your identity can also be revealed if you post your home address or your school name online as it is opened to the public, and you can be in danger. The e-mails that you receive may be filled with advertisements that may cause your computer to hang, or may contain viruses and malware that may corrupt your computer. There are also many online frauds who pose as friends and may harm you emotionally or physically when you reveal your personal information. The photos that we post online can also be accessed even when the phota is deleted. Your face from the photo can also be digitally scanned onto another picture that can be post as pornograghical pictures, which is extremely offensive and unacceptable. That is why we managed to learn to be careful with revealing our information and pictures, in case we get into danger.