This is the edge of what is possible. With quantum computing, seconds to crack longer pass phrases. The disparity between personal and corporate/agency computing power is a credible risk to personal security. Not your keys, not your coins. #Bitcoin

“My USB stick had reached Unciphered’s lab on Tuesday, and I was somewhat surprised to see my three-word passphrase texted back to me the very next morning. With the help of a high-performance computer, Smith told me, the process had taken only 200 trillion tries.” ~Wired