A phishing scam that surfaced earlier this week used Google Docs in an attack against at least 1 million Gmail users. However, that amounted to fewer than 0.1 percent of Gmail users were affected, according to the company. Google last year put the number of active monthly Gmail users at more than 1 billion. Google shut down the phishing scam within an hour, it said, through both automatic and manual actions. It removed the fake pages and applications, and it pushed updates through Safe Browsing, Gmail and other anti-abuse systems.