Safe Browsing is a service that Google’s security team built to identify unsafe websites across the web and notify users and website owners of potential harm.
Google’s Safe Browsing technology examines billions of URLs per day looking for unsafe websites.
Google say that approximately two billion devices benefit from Google Safe Browsing technology. When Google has identified a site as potentially harmful, Safe Browsing triggers a warning to users.
Warnings displayed per week
When a user of a Safe Browsing–enabled browser or APP attempts to access unsafe content on the web, they’ll see a warning page explaining that the content that they’re trying to access may be harmful.
If a site identified as harmful appears in Google Search results, there is a warning next to that site in the results.
How Google Notify Website Owners
If your website is identified as being harmful, then Google will notify you through the search console.
That details the steps to recover from an infection and gives examples of the specific code that has been injected into their site.
Further information available at https://transparencyreport.google.com/safe-browsing/search
If you have an opinion on safe browsing, do let me know, by email.