San Diego, CA -- (SBWIRE) -- 04/03/2012 -- Investigation on behalf of investors in Dun and Bradstreet Corp (NYSE:DNB) shares over potential wrongdoing by certain officers and directors of Dun and Bradstreet Corp (NYSE:DNB) was announced and Dun and Bradstreet Corp (NYSE:DNB) stockholders should contact the Shareholders Foundation. Read the full press release at http://www.sbwire.com/press-releases/dun-and-bradstreet-corp-nysednb-investor-investigation-over-potential-wrongdoing-134908.htm