Every day, Safe Browsing discovers thousands of new unsafe sites. Many of these are legitimate websites that have been compromised by hackers. Unsafe sites fall into two categories that threaten users’ privacy and security: phishing and malware.
Safe Browsing is a service that Google's security team built to identify unsafe websites across the web and notify users and webmasters of potential harm. In this Transparency Report, we disclose details about the threats we detect and the warnings we show to users. We share this information to increase awareness about unsafe websites, and we hope to encourage progress toward a safer and more secure web.
Google’s Safe Browsing service examines billions of URLs and software and content on those pages in its search for unsafe websites. Safe Browsing then warns users when they navigate to websites that could steal their personal information or install software designed to take over their computers. Every week, Safe Browsing protects billions of devices.
These websites contain code that installs malicious software onto visitors’ computers, either when a user thinks they are downloading legitimate software or without a user’s knowledge. Hackers can then use this software to capture and transmit users' private or sensitive information. Our Safe Browsing technology also scans and analyzes the web to identify potentially compromised websites.Learn more arrow_forward
These websites pretend to be legitimate so that they can trick users into typing in their usernames and passwords or sharing other private information. Web pages that impersonate legitimate bank websites or online stores are common examples of phishing sites.Learn more arrow_forward
The term "malware" covers a range of malicious software designed to cause harm. Infected sites install malware on a user’s machine to steal private information or take control of the user’s machine and attack other computers. Sometimes users download this malware because they think they are installing safe software and aren’t aware of malicious behavior. Other times, malware is downloaded without their knowledge. Common types of malware include ransomware, spyware, viruses, worms, and Trojan horses.
These are websites that hackers have set up to intentionally host and distribute malicious software. These sites directly exploit a browser or contain harmful software that often exhibit malicious behaviors. Our technology is able to detect these behaviors to categorize these sites as attack sites.Learn more arrow_forward
These are legitimate websites that have been hacked to include content from, or to direct users to, sites that may exploit their browsers. For example, a page of a site may be compromised to include code that redirects a user to an attack site.Learn more arrow_forward
Approximately two billion devices benefit from Google Safe Browsing technology. When our systems have identified a site as potentially harmful, Safe Browsing triggers a warning to users. These warnings are designed to prevent users from visiting harmful sites and help them stay safe online.
We warn users about unsafe sites in several ways. This chart shows two of the major methods through which we provide warnings. 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 they’re trying to access may be harmful. When a site that Safe Browsing has identified as harmful appears in Google Search results, we show a warning next to that site in the results. The charts in this section of the page present the total number of in-browser/in-app warnings shown to users and the total number of search results displaying warnings on a weekly basis.
Safe Browsing alerts webmasters when their sites have been hacked and provides information to help clean up the problem. Every time we add an unsafe site to the list, we notify the webmaster through the Search Console. We detail the steps to recover from an infection and give webmasters examples of the specific code that has been injected into their site.
As of Apr 8, 2020, the Safe Browsing Malware page has been archived.
We hope that sharing information will encourage cooperation among everyone who battles malware across the web.Together, let’s make the web safer for all. arrow_forward