Lowell C. McAdam, chairman and chief executive officer of Verizon Communications Inc.

Verizon and Yahoo may still make a deal.

Verizon announced plans to acquire Yahoo in July for $4.8 billion. Since then, however, news of two data breaches affecting up to 1.5 billion Yahoo users have put the deal in murky waters. Yahoo has said news of the leaks hasn't affected user activity levels.