Ok, my bad, it's not mostly funded now (though funding isn't totally clear for all of its history) but we do know it was handed 3m near the start by Open Technology Fund which an arm of the US Agency for Global Media which is the US govt, and at best has the mission of pushing us news ideology globally. Ex they did Radio Free Asia after tianamen square, and guess what, that was conceptualized by none other than senator Joe Biden

Yeah the encryption is probably okay, and I use it daily, but these backdoors are often hella sneaky and we know that the US govt loves doing shit like that if they can