stolen logo and claim their ownership

A hosting company called Colour Nodes seems to be “stealing” a logo and claiming it’s their logo.

They claim it’s their logo on another forum: (seems like Jamie is the CEO, he seems to be participating a lot in that forum)

Their logo:
So I did some reverse image search and found out many people are using the same picture too!

Unfortunately I couldn’t trace back who is the owner of the picture but pretty sure they aren’t allow to claim their ownership over other’s people works.