WhatsApp has taken a historic leap forward for instant messaging.Thanks to European Union regulations, WhatsApp will become an interoperable app and will be able to connect with other platforms such as Telegram, Discord, iMessage, Signal, Facebook Messenger, and many more. From now on, users will be able to Send and receive messages between different apps from the same interface, a change that marks a before and after in the way we communicate digitally. But why is this change happening, how does it affect us, and what security and privacy implications does it have? Join us in this detailed analysis where we break down all the key points, features, advantages, risks, and technical details, so you have the most complete and up-to-date information on WhatsApp's interoperability with other messaging apps.
Reasons and regulations behind WhatsApp interoperability
The big change that WhatsApp is experiencing is a direct product of the Digital Markets Act (DMA) The European Union has passed a regulation designed to limit the power of so-called "gatekeepers": technology companies that act as gatekeepers to digital access and dominate their sector with millions of users. WhatsApp, owned by Meta, has been classified as such due to its overwhelming global market share.
The DMA forces these tech giants to open up to interoperability, allowing users to communicate directly across different messaging services. The goal is to foster competition and eliminate barriers, so that users aren't "locked" into a single platform.
In practice, this means that WhatsApp must offer its users the opportunity, if they so wish, to Send and receive messages, files, images, and other content with people using different apps, such as Telegram, iMessage, Signal, Messenger, Matrix and others.
What does it mean to be a gatekeeper? This term refers to a company that, due to its size and position, can control access to essential digital services. The law seeks to balance the market by requiring these players to ensure interoperability and data portability.
With this, the DMA not only benefits end users, but also opens the door for independent developers and smaller apps to compete on a level playing field, promoting innovation and freedom of choice.
How WhatsApp interoperability works: phases, requirements, and activation
Interoperability in WhatsApp It does not mean that everything is activated suddenly or that it works in a mandatory or automatic way.It's a complex process, being implemented in phases and requiring collaboration with other messaging platforms. We'll explain in detail how it's being rolled out and how you can activate the feature.
- Initial phase: Sending and receiving text messages and multimedia files (photos, videos, audio) between individual WhatsApp users and other apps is now enabled. These interactions will appear grouped in the "Third-Party Chats" section within WhatsApp.
- Advanced phase: In successive stages, group messaging across different platforms, as well as calls and video calls between apps, will be enabled. The roadmap anticipates these features being introduced gradually over the next few years.
- Voluntary activation: For privacy and security reasons, interoperability is optionalThe user must activate it manually from the WhatsApp settings, entering Settings > Account > Third-Party Chat and enabling the option. It will not be active by default to prevent spam and abuse.
- Involvement of other apps: For full interoperability, both WhatsApp and the other app must have implemented and activated the technical and encryption requirements mandated by Meta and the DMA. If the other app does not accept the integration, cross-messaging will not be possible.
Detailed activation process:
- Open WhatsApp and enter Settings.
- Accede to Account and find the section Third-party chats.
- Read the interoperability information and accept the privacy warnings (WhatsApp will warn you that other services may use encryption and handle data differently).
- Select the apps you want to allow interoperability with. The list will only display those that have enabled this feature and signed the corresponding technical agreement.
- Save your changes. You'll now see a new tray called "Third-Party Chats" at the top of your conversation list.
Technical highlights: WhatsApp requires interoperable apps to use encryption protocols, preferably the signal-protocol (also used by WhatsApp and Signal) and exchange via structured files (such as XML), to ensure end-to-end security.
How does the design and user experience change in interoperable WhatsApp?
The arrival of interoperability represents a significant transformation in the WhatsApp interface and user experience:
- New “third-party chats” tray: Messages from other apps are grouped into a separate folder, located before traditional WhatsApp chats. This inbox allows you to quickly identify which conversations are external and manage them separately.
- Inbox Customization: You can choose to keep messages from other apps in a separate inbox or merge them with your regular chats. This setting is 100% reversible; users can change it at any time.
- Specific notifications: Whenever a new messaging app becomes compatible, you'll receive a notification that will allow you to connect and manage interoperability options.
- Privacy Management and Blocking: WhatsApp offers tools to block, report, or mute external contacts, just like in native chats. However, users blocked on WhatsApp could contact you again from another interoperable app, so it's essential to regularly review your blocking and privacy settings.
- Initial limitations: Some advanced WhatsApp features (stickers, temporary messages, certain types of reactions or statuses) may not be available when interoperating with apps that don't support those features.
Visualization and organization: WhatsApp has designed a simple and accessible experience so users always understand which app they're using for each conversation. You can identify the message source (for example, Telegram or Signal) in each third-party chat for greater clarity and control.
Advantages, features, and possibilities of WhatsApp interoperability
Interoperability is here to stay make the user's digital life easier and enhance competition between platforms:
- universal communication: Send and receive messages, images, videos, files, stickers, emojis, and voice messages between WhatsApp and other services without having to install multiple apps or create new accounts.
- Group calls and chats: Interoperability isn't limited to individual chats. In future phases, it will include voice calls, video calls, and mixed groups, enabling collaborative work and socializing without borders across platforms.
- Reactions and responses: Among the advanced features Meta plans to implement are message reactions (emojis over text), direct replies (threads), typing indicators, and read receipts, so that the experience is consistent regardless of the chat source.
- Inbox Management: Decide how you want to organize your messages: keep them separate or integrate them with WhatsApp messages, always with the option to revert the settings.
- Greater control and customization: The user has the power to activate, deactivate, or modify interoperability at any time, as well as choose which apps to connect and how to receive notifications.
Thanks to these functions, WhatsApp becomes the control center for your digital communications, allowing you to save time and avoid scattering messages across different apps, giving you a centralized, global view of all your important conversations.
Risks, challenges, and security aspects of WhatsApp interoperability
This revolution in communication is accompanied by New risks and challenges in security and privacyInteroperability is not a trivial task and involves significant technical and organizational challenges:
- End-to-End Encryption: WhatsApp requires any interoperable app to implement encryption (preferably the Signal protocol or equivalent), but the level of security may varySome services, such as Telegram, do not offer full encryption by default for all chats, which can pose a risk to message traffic.
- Risk of attacks and phishing: Openness between platforms can facilitate phishing, spam, or malware attacks if a malicious user leverages a less secure third-party app to contact you.
- Data and metadata exposure: If you receive messages from third-party apps, some of your information (such as your phone number, user IDs, or activity metadata) may be handled differently by the other platform, with different privacy policies than WhatsApp.
- Blocking and cross-reporting: Users blocked on WhatsApp can reach you from another app. WhatsApp also allows you to report, block, and delete messages from third parties, but the effectiveness of these measures will also depend on the cooperation and oversight of the other app.
- Privacy management: It's essential to properly configure privacy and blocking options in both WhatsApp and interoperable apps. Experts recommend enabling interoperability only if you really need it, and be alert to potentially suspicious or unknown messages.
- Initial technical limitations: Advanced features such as stickers, temporary messages, statuses, or full integration with calls or groups may be limited at first and will only be added as agreements and technical developments between WhatsApp and the various apps evolve.
Meta and WhatsApp emphasize that interoperability is 100% optional and that Your messages and calls within WhatsApp will continue to be end-to-end encrypted.However, third-party services may have different policies or technical measures.
Safety recommendations:
- Keep your WhatsApp app and connected messaging apps up to date.
- Enable interoperability only with trusted services.
- Don't accept suspicious messages or links from strangers, especially from other connected apps.
- Manage your privacy and blocking regularly, especially if you use WhatsApp for professional or confidential matters.
- If you have any questions, please contact WhatsApp support and review your privacy settings.
Frequently Asked Questions (FAQ) about WhatsApp interoperability with other messaging apps
Is interoperability enabled for everyone?
No. The user must activate it manually from their WhatsApp settings. It's a voluntary process and can be reversed at any time.
Which applications can I interoperate with?
With all apps that have implemented the compatible technical protocol and signed the integration agreement with WhatsApp (Telegram, Signal, iMessage, Messenger, etc.). If an app doesn't participate, you won't be able to send or receive messages from it.
Will I lose the privacy of my messages?
Messages within WhatsApp will remain end-to-end encrypted. However, chats with third-party apps may be subject to each platform's protocols and policies. It's important to read the privacy warnings before activating the feature.
How do I identify messages from other platforms?
WhatsApp displays a dedicated "third-party chats" folder, and each conversation indicates the originating app. This way, you can easily distinguish whether you're talking to a Telegram, Signal, Messenger, or other user.
Can I disable interoperability?
Yes, at any time, from the app's settings. By doing so, existing third-party chats will remain read-only until you delete them.
Will it be possible to make calls or video calls between apps?
Yes, but in progressive phases. Initially, only individual chats will be enabled; later, group chats and voice and video calls will be activated when the platforms are technically compatible.
Main technical and legal challenges in WhatsApp interoperability
Interoperability requires resolve complex technical and legal obstacles:
- Cross-platform encryption: Different systems use different encryption protocols (Signal, MTProto, etc.) and various user structures (phone number, username, alias). Integrating them without compromising security is a challenge that is still evolving.
- Bridges and intermediaries: To connect platforms with different encryptions, a bridge (intermediary server) is sometimes required to re-encrypt messages and can be vulnerable to Man-in-the-Middle (MITM) attacks.
- User Identification and Matching: WhatsApp identifies by phone number, while other platforms identify by user or ID. Cross-checking and verifying identities without facilitating identity theft requires new anti-fraud and verification systems.
- Privacy Agreements and Policies: WhatsApp and Meta require each third-party app to sign an interoperability agreement and comply with their privacy standards. Not all platforms are willing to make this exchange, so universal integration won't happen until all agree to the terms.
- Content moderation and management: Interoperability complicates the moderation of unwanted messages (spam, phishing, illegal content) because it involves the algorithms and policies of two different companies. There may be delays in detecting and removing malicious messages.
Some services like Telegram, Discord or Threema have expressed doubts about the integration. due to privacy risks and data management, while others such as WhatsApp will begin to bring its payments platform to life o alternatives to Gmail They are more open due to their focus on security and end-to-end encryption.
Impact for businesses, developers, and small messaging services
Interoperability not only changes the user experience, but revolutionizes the market and competition:
- Companies and small businesses: They'll be able to communicate with customers across different platforms without having to manage multiple services, optimizing customer service and teamwork.
- Developers and new apps: They can now integrate their platforms with WhatsApp by meeting the technical requirements, benefiting from Meta's global reach.
- Promotion of innovation: By eliminating barriers to entry and communication monopolies, interoperability fosters the emergence of new ideas, services, and business models.
- Freedom of choice for the user: Users are no longer "locked" into a single app. They can choose the platform that best suits their interests without losing access to their network of contacts.
Tips to take advantage of and protect yourself on interoperable WhatsApp
To enjoy WhatsApp interoperability without exposing yourself to unnecessary risks, keep these tips in mind:
- Enable interoperability only with trusted services and known to avoid spam and phishing attacks.
- Do not share confidential information through third-party chats if you don't fully trust their security level.
- Manage your privacy preferences and blocking on WhatsApp and connected apps.
- Disable interoperability if you detect strange messages, unknown contacts, or suspicious behavior.
- Check WhatsApp for regular updates and read the privacy notices when connecting new apps.
- In case of incidents (impersonation, spam, illegal messages), use the reporting and contact features on WhatsApp Support.
- Be wary of unofficial third-party apps or mods that promise to integrate additional interoperability features, as they may hide malware or security holes.
Roadmap and future outlook: how interoperability will evolve
The deployment of interoperability is carried out in several phases, depending on the schedule agreed with the European Commission and the technical capabilities of each app:
- First phase: Individual messages and sending/receiving multimedia files between WhatsApp and external platforms.
- Second level: Mixed group chats, allowing you to manage and participate in groups even if some members are on different apps.
- Third phase: Cross-platform voice and video calls, opening the door to collaborative meetings and gatherings regardless of the participants' backgrounds.
- Progressive implementation: The emergence of new options will depend on the adoption of interoperability by external apps and the constant improvement of security and encryption systems.
Meta has expressed its commitment to keeping users informed about every new development and to working closely with the other platforms to provide the better experience, greater security and maximum transparency. The functions will be optional and reversible at all times.
The future of messaging will be more open, versatile and collaborativeInteroperability represents a profound shift in digital habits and the app ecosystem, with WhatsApp spearheading this global trend.
WhatsApp's interoperability with other messaging apps is now an unstoppable reality. This advancement puts the user at the center, giving them freedom of communication, control over their privacy, and the ability to choose the experience that best suits their needs. Like every digital revolution, it entails new challenges in terms of security, privacy, and control, but it opens the door to a future where Digital communication flows without barriers or platform restrictionsStay informed, review your settings, and get ready to take advantage of all these new features in your daily life, knowing that the power of universal messaging is now in your hands.
