Kim Nilsson was seething. It was 2014, and the software engineer discovered someone had disabled access to his bitcoins. A crime had apparently been committed, one that the police seemed unable to comprehend, much less solve.

The coins went missing from a failed bitcoin exchange called Mt. Gox, and hundreds of investors found themselves demoralized, if not broke. More than $400 million had seemingly vanished into cyberspace.

Unlike…

Read More