Facebook CEO Mark Zuckerberg plans to unify the company’s messaging infrastructure, including Wattab, Instagram and Facebook Messenger, while making the applications completely secure by adopting a comprehensive encryption technology, the New York Times reported.

The newspaper quoted four people who said they are participating in this step, that Facebook will maintain these three services as independent applications.

The company said it is adding end-to-end encryption, which protects messages from being displayed by anyone other than chat participants, to more messaging products, and to look at ways to make users easier to connect across networks.

“There are a lot of discussions and dialogues with the start of the long process to discover all the details of how this will work,” a company spokesman said.

According to the New York Times report, after the changes, Facebook users will be able to send an encrypted message to someone who only has a # Watts account.

Some former Facebook security engineers and an external encryption expert said the plan could be good news for user privacy, especially by extending party-to-party encryption.

However, this technology does not always hide metadata, which is information about who is speaking to, which has raised concerns among some researchers that data can be shared.

Any combination of Facebook metadata will likely tell you more about users, linking identifiers such as phone numbers and e-mail addresses to those who use the services independently of each other. Facebook can use this data to charge more for targeted ads and services, although it will also have to cancel ads based on message content in Messenger and Instagram.

Facebook Messenger allows strangers to contact people without knowing their phone numbers, increasing the risk of targeting others, especially children.

Phone-based systems, on the other hand, have additional privacy concerns, because governments and other entities can easily extract location information from them.