Being online only doesn't stop hacking, GT Sport hacks are happening.
https://www.gtplanet.net/forum/threads/gt-sport-hacks.371727/
Mostly suspicious qualifying times yet here is one example caught on live stream
At 52:30 he's analyzing the incident in replay, suddenly the car is 4 seconds further ahead.
Amazing what lengths people go through to be nr 1, pushing, shoving, punting, and now hacking.