1. Spying
Every facebook user was extremely excited about the new reactions feature that Facebook added recently. This feature replaces the like button and allows people to choose from 6 options, which should help them express their emotions better. However, it has been found out that this feature might be dangerous.
[adinserter block=”16″]
2. Private Data
Police has issued an warning, stating that this reaction feature helps Facebook gather personal data from the user. 
[adinserter block=”16″]
3. Marketing
This is the statement made by the Belgian police department.
[adinserter block=”16″]
4. Custom targetted ads
And here’s why you should not just sweep this matter under the rug.
Source[adinserter block=”16″][adinserter name=”last page”]