Using IP address to unmask click fraud
So we're trying to unmask a possible click fraud coming from adwords and thinking of using collected IPs outside of GA and insert them through a custom dimension. If we do this, we're not breaching any PII regulations right?
If you know of any other good way of unmasking click fraud, welcome to hear.
Re: Using IP address to unmask click fraud
technically, that's actually feasible - no question. You may want to create a session-scope custom dimension for that.
Legally, it depends on the relevant privacy regulations in your country of operation and/or the country of your audience, so if an IP is considered as a PII or not. In Germany, for example, privacy authorities claim that it is a PII.
Be sure to firstly check possible natural causes for that .
Do you have access to the raw logfiles on your web server? If so, you could try to segment strange traffic in Analytics and then try to recognize that traffic in your log files and possibly get the potentially harming IPs there.
Then, you might raise a click investigation  done by Google.
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