ZDNet: Millions of records leaked from huge US corporate database

ZDNet: Millions of records leaked from huge US corporate database. “Millions of records from a commercial corporate database have been leaked. The database, about 52 gigabytes in size, contains just under 33.7 million unique email addresses and other contact information from employees of thousands of companies, representing a large portion of the US corporate population.” It’s not clear from the article if this is a hack or a breach or what.