RCS-enhanced iMessage in iOS 18: Improvements and Remaining Security Issues

Apple's adoption of the RCS protocol in iOS 18 has improved iMessage communications between iPhone and Android users. The update brought several improvements, such as retaining original quality of videos, GIFs, and photos; showing when a user is typing; and seamless management of group chats. However, some security issues remain, particularly in message encryption for cross-platform communication. Apple and Google are working together to solve these issues. Until the issues are resolved, users with many Android contacts may consider using third-party messaging apps like WhatsApp or Signal for better security and features.