Security firm Armorblox says fraudsters are increasingly using free Google services to create phishing emails and malicious domains that circumvent security filters. These attacks are more effective than standard phishing campaigns because Google’s reputed URLs and domains allow these emails to get past security filters that block known bad links and domains. The attacks are part of a larger trend of attackers leveraging collaboration, storage and site-building software/tools to meet their nefarious ends, the researchers say. In one case, a phishing email that impersonated American Express Customer Care was sent to victims, telling them that they did not provide some information while validating their card.”]