Due to an error dating back to 2005, Google stored G Suite customers’ passwords on its servers in plain text, the firm wrote in a blog post. Free Google emails were not affected by this issue.
The company usually hashes customers' passwords so that it does not have access to them. However, when rolling out a toolset that allowed domain administrators to set and recover user passwords, Google made an error. For that reason, a copy of the unhashed password was stored by the admin console.