More than a third of mobile programmatic traffic is at the risk of fraud. Multiple banners are stacked on top of each other, while only one could be effectively seen. This is called impression fraud. A bot can generate huge number of clicks.This is called click fraud. A postback event can be stimulated to fake an install or a post-install event. This is installation fraud. Fraudsters also work around the objectives the advertisers are seeking so as to satisfy them. In programmatic, without bidding, data pattern is analysed to detect fraud. As programmatic evolves, fraud prevention at the impression level, will be easier.