Spike in data usage

@ComcastTeds 

I have been following a few forum strings about spikes in data usage. In July, for some unknown reason, I used twice as much data as my highest use month ever. And this was with only one person at home watching Netflix, no gaming, no large file transfers, etc. One of your helpful co-workers sent me a replacement modem / router which I will install tomorrow, but I find that to be a Hail Mary at best. I posted on our community  FB page about this and literally dozens of people experienced the same spike. 

What's up? For real!