Danish computer scientist Bjarne Stroustrup invented the language C++ in 1985. Even now, 34 years on, it remains the one of the most commonly used codes woven into systems throughout the world.However, Stroustrup now says his one overwhelming regret over the last four decades is that his work went on to become the code upon which bitcoin is based. When you build a tool, you do not know how it is going to be used, he lamented.

Im very happy and proud of some of the things C++ is being used for and there are some other things I wish people wouldnt do.

Bitcoin mining is my favourite example it uses as much energy as Switzerland and mostly serves criminals.

The 68-year-old a managing director at Morgan Stanley in New York has spoken before about his dislike of cryptocurrency, but this is the first time hes expressed remorse over his code being used in the creation of BTC.

Speaking on the highly popular Lex Fridman podcast, the University of Cambridge graduate enthused over the great achievements made with computer science, but he turned his ire upon bitcoin when he discussed regrets, highlighting concern over environmental issues and criminality.

Almost half of all bitcoin transactions have, according to some studies, connections to criminal activities. It has also been suggested that almost a quarter of BTC users are also involved in illegal activity to the tune of $72 billion a year.

Bitcoin also attracts criticism for its negative environmental impact, using up a mind-boggling seven gigawatts of electricity a year and accounting for 0.21 percent of the worlds supplies.

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BITCOIN: Cryptocurrency is for criminals, says inventor of worlds leading computer code - Express