Sure. Revolutions of the past mostly. Some had succeeded with less bloodshed also. But let’s think for a moment / internet is the first thing going down when modern revolts ignite - not only in Persia, but also in India, Africa, Mianmar and others…

So perhaps being able to organise is much more challenging to the status quo than having a pistol in every house. I would also argue 21st century revolutions are perhaps a little different from others before.

I can easily imagine a very massive cyber revolt where communications are brought to a standstill for the ruling elite. But while imaginable is hard to enact in practice and someone else in the comments noted many top Iranian officials had an IT or engineering backgrounds which makes them better prepared and the whole effort much more challenging.