Over a year ago, Google launched Safe Browsing alerts in Google Analytics to warn users about websites identified as compromised and being used for distributing malware or phishing attacks. Since launch, They’ve alerted more than 24,000 Google Analytics property owners whose websites had been compromised by 3rd parties.
This time, Google is again making a very critical change where they will be expanding their set of alerts in Google Analytics by adding notifications about sites hacked for spam in violation of their Webmaster Guidelines. In the unlikely event of your site being compromised by a 3rd party, the alert will flag the affected domain right within the Google Analytics UI and will point you to resources to help you resolve the issue.
Read Complete Update here: More security notifications via Google Analytics