Want to know what surprise Facebook holds about you, visit here

Facebook has a place to store detailed descriptions of users, which is Your ad preferences. Accessing here, users can imagine what Facebook is thinking about them.

In particular, in Your Categories , many people will be startled by the series of accurate information about themselves such as birth in a few months, living away from home, or traveling, using equipment. What, mobile network usage, interest in any activity .

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Facebook relies on personal information provided by users and gathered from your behavior to produce results. For example, rely on a place to live and a high school to result in you living away from home, away from home or having a close friend in any month if you regularly contact you. From that information, appropriate ads will show the user's timeline on the right event.

Even if the user erases this information, Facebook will automatically detect and add it after a while.

Facebook spends a line to commit the above data to use only in distributing ads directly below those information. But the information leak scandal of more than 50 million accounts recently warned us about the insecurity of information on Facebook.

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In Your infomation section, users customize basic information such as relationship status, agency, age, education . and whether Facebook is allowed to access or not. But if the user does not actively turn off, these options are public by default.

Alex Zhu, co-founder of Musical.ly, Facebook's regular partner warned users about privacy settings for personal information. Specifically, information such as name, photo, gender, network, user id if user does not set privacy (to hide), Facebook has access and share it to third parties.

In addition, Facebook relies on what users like, share and comment to offer interests, food, brands, fashion, lifestyle, culture . in Your interest section.

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The information that Facebook collected from users and optimized for advertisers helped this social network to collect 40 billion USD last year. For Facebook, users are items and advertisers are customers. To protect themselves, users should actively hide the above information.

See more:

1. Instructions on how to hide personal information on Facebook
2. It turns out Facebook has collected SMS and call information for Android users for years now
3. How have 50 million Facebook users been taken advantage of by Cambridge Analytica to serve politics?