With the Digital Markets Act (DMA) deadline approaching, WhatsApp is poised to introduce third-party chat integration, heralding a new era in messaging. In an exclusive interview with Wired, Dick Brouwer, WhatsApp’s engineering director, sheds light on the platform’s preparedness for interoperability while upholding stringent privacy and security standards. Under the DMA mandate, WhatsApp and Messenger, overseen by Meta, will open their doors to other chat apps, marking a significant shift in the messaging landscape. This inclusive approach, initially focusing on direct messaging, aims to enhance user experiences while implementing safeguards against spam and scams through opt-in mechanisms. Although specifics of agreements remain undisclosed, WhatsApp underscores the importance of end-to-end encryption as a fundamental requirement. However, the complexities of implementation and potential privacy concerns loom large, hinting at a transformative yet challenging journey ahead. Amidst these developments, innovative initiatives like Beeper’s ambitious iMessage integration highlight the evolving nature of multi-platform messaging services.