After the National Stock Exchange (NSE), rival bourse BSE on Thursday cautioned investors against deepfake videos of its MD and CEO Sundararaman Ramamurthy giving stock recommendations. In a statement, the exchange said it has noticed some fake, unauthorized and fraudulent videos and audios created through innovative and ingenious technology impersonating the BSE's top honcho are being circulated on social media recommending certain investments and advisory in stocks. In fact, BSE said its managing director and chief executive officer does not initiate or endorse any such communication through Facebook or any other social media platform. Also, the exchange asked investors not to trust such videos and audios and not to follow fake recommendations or unsolicited communication circulated through deceptive means impersonating Ramamurthy. Further, the exchange said it will initiate all possible steps to prevent misrepresentation by unknown elements. "In the meantime, investors/public a