Defined as “Keeping your damn mouth shut!”
One of the constant security worries for everyone including preppers, survivalists, patriots or military is the inadvertent disclosure of Intel.
Want to see a good black and White film about it?
A 1940’s War Security Movies on YouTube called The Next Of Kin ^ 1942.
Some will probably think in today’s world what happened in the film is unlikely to happen now. Ho hum, there’s always a few.
In anything, the opportunities for espionage are greater than ever and the speed of Intel gathering and transfer to the enemy (be that foreign or
government Whoops I meant domestic) moves at speed of light.
Still, if you’ve got 90 minutes to spare, watch the film.
You’ll probably find it a useful experience.