(Telecompaper) Verizon Communications said its USD 4.83 billion acquisition of Yahoo could be affected by evidence of the massive data breach of email accounts, Reuters reported, citing Verizon general counsel Craig Silliman at a roundtable in Washington. The data breach could trigger a clause in the deal that would allow Verizon to pull out. "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," Silliman said, declining to comment on whether talks are under way to renegotiate the purchase price.