NEW YORK (Reuters) - The trial of two men was delayed on Monday in a case stemming from a probe into a bitcoin exchange and a data breach at JPMorgan Chase &amp; Co after prosecutors revealed a new witness.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=gAbJ4P2bhj0:eHJEQ8KkQfo:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=gAbJ4P2bhj0:eHJEQ8KkQfo:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=gAbJ4P2bhj0:eHJEQ8KkQfo:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=gAbJ4P2bhj0:eHJEQ8KkQfo:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=gAbJ4P2bhj0:eHJEQ8KkQfo:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/gAbJ4P2bhj0" height="1" width="1" alt="" />