Massive Credential Hacks Are the Crosswords of the Future

When hackers break into the databases of the great and good—like Adobe—they're often left with an encrypted password and an unencrypted password hint. In other words, a giant, modern version of a crossword puzzle.

As Randall Munroe points out, the hackers are essentially presented with a set of clues, the answers to which are of a known character length. Screw the NYT cryptic; this is a real challenge. [XKCD]