And what would that be? If you knew you could just answer instead of being incredulous on account of your ignorance.

Even where other channels exist for actually disseminating plans to the military, informal discussion occurs across many channels within the President's cabinet and always has. Whether that's by phone, in person, in writing, by telegraph, in email or in encrypted text messages, there is no formal restriction on informal communication. There's no arbitrary prescription set out by the Constitution and how ridiculous would it be to do so.

The law only states that the President must archive communications to satisfy the law. That is all.

Encrypted text messages are fine for cabinet discussions actually.

Here is Biden's CISA recommending just that:

https://www.cisa.gov/resources-tools/resources/mobile-commun...