The Massive Yahoo Data Breach: What You Need to Know

Click on the 'Listen' button above to hear this interview.

Yahoo users got quite the surprise on Thursday when they learned that at least 500 million accounts with the company had been compromised in a massive "state-sponsored" hack that occurred two years ago. 

The breach, which is among the largest on record, occurred under the leadership of CEO Marissa Mayer. The news comes as Verizon is in the process of acquiring Yahoo for $4.8 billion.

Chris Calabrese, vice president for policy at the Center for Democracy and Technology, has the details on the hack. Click on the 'Listen' button above to hear the full conversation.