Verizon last week indicated that its $4.8 billion acquisition of Yahoo could be in jeopardy in light of its delay in disclosing a massive 2014 data breach that compromised about 500 million account holders. Verizon may need some additional assurances about the effects of the breach, suggested General Counsel Craig Silliman. "I think we have a reasonable basis to believe right now that the impact is material, and we're looking to Yahoo to demonstrate to us the full impact. If they believe that it's not, then they'll need to show us that."