1. PhishTank: Statistics about phishing activity and PhishTank usage, http://www.phishtank.com/stats.php (last accessed April 28, 2012)
2. Goodin, D.: Google bots detect 9,500 new malicious websites every day, http://arstechnica.com/security/2012/06/google-detects-9500-new-malicious-websites-daily/ (last visited July 12, 2012)
3. Google Inc.: Safe browsing API — google developers, https://developers.google.com/safe-browsing/ (last accessed April 28, 2012)
4. Hong, J.: The state of phishing attacks. Communications of the ACM (2012)
5. Zhang, Y., Egelman, S., Cranor, L., Hong, J.: Phinding phish: Evaluating anti-phishing tools. In: NDSS (2007)