Microsoft says Iran-linked hackers targeted businesses

Microsoft has detected cyberattacks linked to Iranian hackers that targeted thousands of people at more than 200 companies over the past two years, according to a report

That's according to a Wall Street Journal report Wednesday that the hacking campaign stole corporate secrets and wiped data from computers.

Iran is denying involvement. Alireza Miryousefi, a spokesman for Iran's mission to the United Nations, says the allegations are coming from a private company and such reports "are essentially ads, not independent or academic studies, and should be taken at face value."