I often happen to receive the message: "Unusual traffic from your computer network" while googling in Russian speaking countries.
Google explains this with:
You may see "Our systems have detected unusual traffic from your computer network" if Google detects that a computer or phone on your network may be sending automated traffic to Google.
Automated traffic includes:
Sending searches from a robot, computer program, automated service, or search scraper Using software that sends searches to Google to see how a website or webpage ranks on Google
Most of the times, Google simply stops working and I have to use Bing.
Despite what Google says, I still don't get what is the misbehaviour here? What is the problem with privacy/security, if any?
Why in some regions of Eastern Europe does this happen quite regularly and, most of all, why does it affect all users of the network and not only those sending the unauthorised traffic.
Is "automated traffic" an understatement for something trying to flood their servers ?