Do you start losing rss if you don't log in often enough?

That means there’s a possibility of being attached by someone while you were away.

Its probably because your electricity run out since you didn't log on. Did you notice that your electricity depleted already? Cause resource buildings needs electricity to work.

I wouldn't ask if someone plundered my resourses.. I've played for 6 months so I'm not a newbie. Also like I said my electricity production is positive so I can't run out of electricity. As example: fuel production 66k/h, consumption 0k/h and efficiency 100%. After almost 3 days of being offline, I logged in and had ~500k fuel in storage. Production seemed normal when I checked it for 20mins or so. All my 12 farms had the same thing. I logged in them on friday when I emptied and shielded them and next time after 70 hours or so.

You may produce fuel but was it applied to the power station and still producing power whilst you were away for 3 days or was the fuel supplied to the power station before you logged off enough to last 3 days... mine doesn't supply that long

I dont think you lost RSS, I think the offline account have lower production speed than online one. I tried running 2 farms with same level and production speed, one on emulator and the other is not login. After 12h however the one online have more RSS but also lost faster consumption (ration truck, fuel in power plants). after emptying it the online have 1,4m fuel while the offline only 800k (both production speed is 102.4K/h). I dont know the exact number about how much the production is lowered if offline.