Resolved
Once Apple shares a software upgrade (after iOS 13.4.1) for Apple iPhones and iPads, we recommend that all users download and install it as soon as one is available on their device.
Identified
An iOS security flaw affecting the built-in Mail app has been identified. Apple is currently working on a software update to remedy the issue. We recommend that all Apple iPhone and iPad users download and install the next upgrade (after iOS 13.4.1) as soon as one is available on their device.