The German police made the mistake in late 1941 of switching from the rather strong Double Transposition cipher to the more accessible Double Playfair, and for over a year Bletchley Park was able ...

Cipher Mining Inc. (CIFR) closed at $2.34 in the latest trading session, marking a -1.27% move from the prior day. The stock's change was more than the S&P 500's daily loss of 2.36%. Meanwhile ...