As part of the launch of the new EU regulations governing the use of digital "gatekeepers," Meta is ready to answer all of your questions about WhatsApp and Messenger providing end-to-end encryption (E2EE), while also complying with the requirements outlined in the Digital Markets Act (DMA). A blog post by Meta on Wednesday detailed how it plans to enable interoperability with Facebook Messenger and WhatsApp in the EU, which means users can message each other if they also use Signal's underlying encryption protocol when communicating with third-party messaging platforms. 

As the Digital Markets Act of Europe becomes more and more enforced, big tech companies are getting ready to comply with it. In response to the new competition rules that took effect on March 6, Google, Meta, and other companies have begun making plans to comply and what will happen to end users. 

There is no doubt that the change was not entirely the result of WhatsApp's decision. It is known that European lawmakers have designated WhatsApp parent company Meta as one of the six influential "gatekeeper" companies under their sweeping Digital Markets Act, giving it six months to allow others to enter its walled garden. 

Even though it's just a few weeks until the deadline for WhatsApp interoperability with other apps approaches, the company is describing its plans. As part of the first year of the regulation, the requirements were designed to support one-to-one chats and file sharing like images, videos, or voice messages, with plans for these requirements to be expanded in the coming years to include group chats and calls as well. 

In December, Meta decided to stop allowing Instagram to communicate with Messenger, presumably to implement a DMA strategy. In addition to Apple's iMessage app and Microsoft's Edge web browser, the EU has also made clear that the four parent companies of Facebook, Google, and TikTok are "gatekeepers," although Apple's parent company Alphabet and TikTok's parent company ByteDance are excluded. 

ETA stated that before the company can work with third-party providers to implement the service, they need to sign an agreement for interoperability between Messenger and WhatsApp. To ensure that other providers use the same security standards as WhatsApp, the company requires them to use the Signal protocol. 

However, if they can be found to meet these standards, they will accept others. As soon as another service sends a request for interoperability, Meta is given a window of three months in which to do so. The organization warns, however, that functionality may not be available for the general public to access immediately. 

The approach Meta has taken to interoperability is designed to meet the DMA requirements while also providing a feasible option for third-party providers looking to maximize security and privacy for their customers. For privacy and security, Meta will use the Signal Protocol to ensure end-to-end encrypted communication. This protocol is currently widely considered the gold standard for end-to-end encryption in E2EE.