Company A was just starting out with
pay-per-click adverts - 'sponsored links'
on search engines and similar.
It had been working OK
for the last few months,
increasing their sales and
visitors by enough to justify the expense
each time they refined their
campaigns or spent a little more.
Their ad manager called because
they were unexpectedly spending a lot more
money on the same type of adverts, but
without any corresponding results.
Was there foul play?
Had a competitor noticed their adverts and
kept clicking them from different browsers?
In short, was someone trying a click-fraud
attack on them?
Here's how we found out...
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