XKCD once had a very salient comic on this point: https://xkcd.com/538/
The idea being, you think they can't break your encryption, but they can just break your fingers one by one until you tell them the password.
The idea being, you think they can't break your encryption, but they can just break your fingers one by one until you tell them the password.
The NSA can't hire enough heavies to break fingers of every person sending and receiving encrypted data (assuming they could even find the people sending and receiving it without first decrypting).