The intelligence service will request a special version of the software which will store the contents unencrypted, or decrypt the existing contents, or send information to a different server.
Then they will coerce a telecommunications provider to install this application on the targets machine (says nothing about having it installed on everybody's machine accidentally or otherwise).
have the app store send a special version of the app or system update to robryan that as well as renders the message on the screen also sends it to the gov.
The Government simply defines systemic weakness to be something that doesn’t happen when Apple is coerced to introduce an easily exploitable hole in their security for all products.
Then they will coerce a telecommunications provider to install this application on the targets machine (says nothing about having it installed on everybody's machine accidentally or otherwise).
Then they shall profit.