NEW YORK, May 25, 2018 /PRNewswire/ -- OTC Markets Group Inc. (OTCQX: OTCM), operator of financial markets for 10,000 U.S. and global securities, today announced WISeKey International Holding Ltd (SIX Swiss Exchange: WIHN; OTCQX: WIKYY), a global cybersecurity company, has qualified to... |