Security experts at Trend Micro have discovered that click fraud conducted through medium-sized botnet is a profitable business that can earn millions of dollars on an annual basis. Researchers at 'Trend Micro' have recently studied the click fraud cybercriminal model and stated that a medium-size botnet could earn hackers millions of dollars every year. The company states that the networks used by these hackers can include more than 100 servers hosted at different data centers around the world. Some Internet groups have thousands of dollars in liquid assets which enable them to make considerable investments in latest criminal activities that ensure huge returns. Therefore, the collateral damage their activities cause is massive.

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