Soft Fraud comes out of publishers that are dragging a part of the advertiser's organic traffic to themselves, manipulating display / click attribution models
Smart Bots can fully emulate user behavior with high accuracy by performing in-app activities for up to 30 days after install
Anti-fraud detection of abnormal TTI has forced fraudsters to adjust. Now they attempt to “cut off the long tail” of TTI over several days, making Click Spam more complicated to detect
Incentive Fraud happens when real users are motivated to install an app/game in return for receiving some form of reward
Most anti-fraud solutions show too much information publicly and are easily reverse-engineered by fraudsters so they can emulate real users. Their Device Farms can fake post-install ...
Significant anomalies in post-install activity may indicate bot-fraud, but not all such anomalies are clear cases of fraud