Google said Wednesday that it had discovered a hack of its DNS servers that allowed malicious actors to control the servers and manipulate DNS zones for users.
The hackers also used the DNS server for storing a malicious payloads.
Google has begun an investigation into the hack, which was first reported by the Wall Street Journal.
The breach affects about 2 million Google DNS servers, and Google said it is taking steps to prevent other similar attacks.
Google said in a statement that it is notifying users who may have experienced problems or had issues with their DNS settings.
Google’s DNS server is operated by a third-party company.
Google does not have an independent company to manage its DNS system.