Google Transparency Report:  “Google’s Safe Browsing technology examines billions of URLs per day looking for unsafe websites. Every day, we discover thousands of new unsafe sites, many of which are legitimate websites that have been compromised. When we detect unsafe sites, we show warnings on Google Search and in web browsers. These unsafe sites fall into two categories, both of which threaten users’ privacy and security:

• Malware sites contain code to install malicious software onto users’ computers. Hackers can use this software to capture and transmit users’ private or sensitive information.
• Phishing sites pretend to be legitimate while trying to trick users into typing in their username and password or sharing other private information. Common examples are web pages that impersonate legitimate bank websites or online stores.”