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RCS-enhanced iMessage in iOS 18 still has security issues when adding Android users

Apple's adoption of the RCS protocol in iOS 18 has improved communications in iMessage between users of iPhones and Android, but some security issues remain. Apple and Google are working together to fix them.

Apple's adoption of the RCS protocol in iOS 18 has improved communications in iMessage between users of iPhones and Android, but some security issues remain. Apple's adoption of RCS in iOS 18 will not change the "green bubble" status of Android messages on iPhone, but behind the scenes the update has brought a number of improvements. Some problems remain that, for example, are not present in secure cross-platform third-party apps like WhatsApp or Signal, but Apple and Google say they are working together to solve these issues.

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