[gwbas1c]

> It seems a strange belief that you can tell all the radio operators about the vulnerability without also telling exploiters

I suspect that there was an update (or replacement) to the radios that was generally described as an ordinary update / maintenance.

[freeopinion]

Do you also suspect that the patch was generally ignored because nobody knew it was important?

Should the vendor be allowed to continue to sell models they know are compromised while their competition loses those contracts? Shouldn't there be some consequence for such fraud?