https://techcrunch.com/2018/06/15/cheq-series-a/

While brand safety and fraud prevention have been big topics in the online ad industry over the past couple years, Cheq CEO Guy Tytunovich argued that “first generation solutions for ad verification” aren’t good enough.

The problem, Tytunovich said, is that existing products use sampling to alert advertisers to issues “after the fact.” Compare this to credit card fraud — if the credit card company only alerted you long after the fraud had occurred, “You’re not going to be happy with that kind of answer.”