I don't know. I would worry about the fact that SHA256 was chosen for the hashing algorithm. There's good reason to believe that the NSA has attempted to develo

I don't know. I would worry about the fact that SHA256 was chosen for the hashing algorithm. There's good reason to believe that the NSA has attempted to develop hardware that can perform incredible quantities of SHA256 hashes, because it is also used as the standard for most encryption online. They might not have powerful enough machines to actually brute-force normal Internet encryption standards, but they are probably still attempting to develop them, and it shouldn't be surprising if they now have a SHA256 hashing network that can blow the entire world's bitcoin mining operations out of the water. Alternatively, some other entity may have attempted to build a hashing network to crack online encryption, and they developed bitcoin as another way to try to use their network. Conspiracy theories, yeah I know, but come on. Is it not at least plausible?