Google leaked the complete hidden whois data attached to more than 282,000 domains registered through the company‘s Google Apps for Work service, a breach that could bite good and bad guys alike.

The 282,867 domains counted by Cisco Systems‘ researchers account for 94 percent of the addresses Google Apps has registered through a partnership with registrar eNom. Among the services is one that charges an additional $6 per year to shield from public view all personal information included in domain name whois records.