I read somewhere-

If you are not paying for a product, that means you are the product.

This is very true for social media platforms. They are gathering our personal data and selling it to the companies which can use that data for data mining activities. Most of the people don't know that by sharing everything on social media sites, they are compromising their data security. This data breach is also a matter of breach of trust. These companies are steeling our data and by this using us as a product on which they are earning a lot. These companies must be made responsible for what they did.