IRS chief denies report he spied on colleagues while at JPMorgan

Frank Bisignano, the head of the Internal Revenue Service and Social Security Administration, denied a report in the Wall Street Journal that he spied on colleagues while at JPMorgan Chase.

"None of it's true," Bisignano told CNBC in an interview Tuesday.

Bisignano's current positions leading both the IRS and Social Security system puts him in charge of agencies with sensitive financial information on every U.S. taxpayer and worker.

The Journal, citing unidentified people familiar with the matter, reported that Bisignano, then co-chief operating officer at JPMorgan, used his authority over the bank's security department to snoop on the email of rival executives, including Charlie Scharf, then JPMorgan's head of consumer banking and now chief executive officer of Wells Fargo.

Bisignano also accessed a draft complaint from the Federal Energy Regulatory Commission about a questioned derivatives trade that was a confidential document only available to a few members of the legal department, the Journal reported.

Bloomberg News previously reported that the bank ordered an internal probe in 2013 into who had leaked a document to the New York Times about a federal investigation of JPMorgan for possibly manipulating U.S. electricity markets. Bloomberg reported that evidence indicated the leaker could have been Bisignano.