Information
Apple uses the Google Safe Browsing API to check for fraudulent websites and report them to the user attempting to visit one.
Rationale:
Attackers use crafted web pages to social engineer users to load unwanted content. Warning users prior to loading the content enables better security.
Impact:
Once-compromised websites serving malware could be sanitized and remain in the database, though there is no widespread reporting of that risk.
Solution
Profile Method:
Create or edit a configuration profile with the following information:
The PayloadType string is com.apple.Safari
The key to include is WarnAboutFraudulentWebsites
The key must be set to: <true/>
Note: Since the profile method sets a system-wide setting and not a user-level one, the profile method is the preferred method. It is always better to set system-wide than per user.