In Russia, some crypto miners go underground – literally

Russia’s southern republic of Dagestan has called for tougher measures against power-hungry cryptocurrency miners who local officials said were causing electricity outages and seeking to evade the law by building mining installations underground.

Miners of digital coins have come under scrutiny across the world in recent years because the computing power needed to solve the complex puzzles involves specialised hardware which operates around the clock and guzzles electricity.

Dagestan’s local prime minister...