According to CoinMeta, as reported by bitcoin.com and news, the host of CNBC Jim Cramer stated that he plans to sell all his Bitcoin holdings because he believes quantum computing will break through the security measures of this cryptocurrency within about three years. This statement stems from an interview conducted by Jim Cramer with IBM's chairman and CEO Arvind Krishna on July 30th, in which Arvind Krishna warned investors at the time to be vigilant regarding the ability of quantum computing to challenge modern cryptography within three to four years.