With the use of the internet many users have lost privacy due to all the data that they introduce in the web and this can be taken advantage of by third persons
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Technology To Control Our Own Data

The idea here is to use computer tools that ensure private companies don’t collect your personal information in the first place. Recent examples include an open source search engine and an ad-free social network.

There are also laws that protect users' personal data and penalties for those who fail to comply

In addition, users use passwords to protect all public profiles on internet pages