So the same as every other ad network then? Only half joking.
Our niche SaaS sees 90% of Google Ad spend going to India, Russia and South America unless we create a short-list of countries to specifically target. And Google is full of dark-patterns around your targeted countries, by default it selects "people in, or interested in, your targeted locations" unless you drill down and find an obscure setting to change this. Then you only need to deal with the domestic and/or more sophisticated ad fraudsters, which will still probably end up as the majority of the spend.
Our niche SaaS sees 90% of Google Ad spend going to India, Russia and South America unless we create a short-list of countries to specifically target. And Google is full of dark-patterns around your targeted countries, by default it selects "people in, or interested in, your targeted locations" unless you drill down and find an obscure setting to change this. Then you only need to deal with the domestic and/or more sophisticated ad fraudsters, which will still probably end up as the majority of the spend.