If you want to de-activate it, change your Ecobee.com password or read the privacy policy to know how to have all your data deleted. Ever try searching?
What kind of stupidity is this? And you posted it twice in two different forums. How about you try reading this: https://beestat.io/privacy/ or this from the FAQ:
“Does beestat sell my data?
No. Beestat is a passion project and I have no interest in violating the trust of my users by selling their data. For further reading, check out the privacy policy” (linked above)
How freaking paranoid are you exactly?