content: Quality of data is ensured through quantity.    10 times of fake date, or 100 times fake data is still fake date. Hey we have bots to generate big data if people are willing to pay for it.   And if enough fake data is being generated then the AI will think that the fake data is real and the real data is fake. How do you get fake data? Well Fake data bots that will flood the data sources. Or more efficiently, give a low paid Indian outsourced IT specialist some money and a script so he can execute it directly into the telemetry collecting  databases. Who would notice?