AT&T, Comcast, Philip Morris, Walmart, Verizon, GM and Pfizer were among the most prolific.
FBI has received more than 500 tips and leads as authorities say they are looking at every possible motive.
Your cell phone is "probably the dirtiest thing any human has on them at any time," an AT&T worker said.
The president is suggesting that Elliott Management -- led by GOP megadonor Paul Singer -- violate press freedom at CNN.
The floodgates are open for further corporate consolidation.
The landmark antitrust decision is expected to shake up the media and telecommunications world.
U.S. lawmakers demand details from Novartis and AT&T about their payments to Cohen's firm.
The telecommunications giant's $85 billion merger is currently pending approval from the Justice Department.
The most innocent explanation of the payments to Michael Cohen's LLC is still pretty sketchy.