There are many disadvantages of sharing personal information online. The biggest disadvantage is that we do not fully understand privacy on the Internet. Although people think that they’re accounts are private, do we really know how private they are and how different organisations use our information ? For example, social media doesn’t provide much privacy protection for the users. They watch users and see what kind of things they put into their profiles and what interests them, through their interactions.
In addition, sharing personal information online will expose all of your privacy and can be used by people with ulterior motives. When using the Internet, people can steal your personal information. When you post things like your name, birthday, credit card number and your place of residence online, there will be a risk of your information being used by others and what they can and will do with this.