A new study conducted by Marco Cova, Christopher Kruegel, and Giovanni Vigna, provides factual evidence of a well known practice by experienced phishers, namely, <A HREF="http://blogs.zdnet.com/security/?p=1641&tag=nl.e539">backdooring phishing pages</A> that they would later on distribute for free across the IT underground, in order to build a covert network where other phishers would be unknowingly providing them with the accounting data that they would eventually obtain.