Cisco CEO Breaks 'Rule,' Denies FireEye Acquisition By: Benzinga via Benzinga May 14, 2015 at 08:46 AM EDT Rumors emerged Wednesday that Cisco Systems, Inc. (NASDAQ: CSCO) had bid $9 billion for security-maker FireEye Inc (NASDAQ: FEYE). ... Read More >> Related Stocks: Cisco Systems Fireeye Inc Macy's