(Disclaimer: I am head of TAG)
The thing with trying to hide yourself is you have to do everything right to guarantee some false flag operation will work but if you make enough mistakes in this process there will be reasonably high-confidence links between some action and some person.
An example that I _have_ seen in some write up: some snippet of malware code showing up in a stack overflow question (with the shape and user variables being the same).
At one point it's like... probably that person. Of course maybe there are other indicators to the contrary but that's data for you. Gotta use your noggin a bit.
I ask because it’s broadly accepted that there are extremely powerful and wealthy entities in the West who benefit from an aggressive US foreign policy and heightened geopolitical tensions.
Hack something shoddy together, go to war/regime change/etc, and worst case if it does come to light that the "intel" was wrong, a well-placed "whoopsie-daisy" is enough to wash hands of all responsibility or scrutiny.