"Surge in Phishing Attacks Using Legitimate reCAPTCHA Walls"

Researchers from Barracuda Networks, have discovered that adversaries are starting to use legitimate reCaptcha walls to disguise malicious content from email security systems.  reCAPTCHA walls are usually used to verify human users before allowing access to web content.  Sophisticated scammers are starting to use the Google-owned service to prevent automated URL analysis systems from accessing the actual content of the phishing pages.   The researchers observed one email credential phishing campaign that sent out more than 128,000 emails to various organizations and employees using reCAPTCHA walls to conceal fake Microsoft login pages.  

Help Net Security reports: "Surge in Phishing Attacks Using Legitimate reCAPTCHA Walls"