"Warning - phishing (web forgery) suspected. The site you are trying to visit has been identified as a forgery, intended to trick you into disclosing financial, personal or other sensitive information," mentions the page displayed by Google instead of the search result.
Google also has a Safe Browsing API "that enables client applications to check URLs against Google's constantly updated blacklists of suspected phishing and malware pages." The API is used by Firefox and Google Desktop.