The same freely available vector icon is entered into logo design contests on Crowdspring and 99designs.
The icon in question is available from Vecteezy and has been downloaded 45,149 times.
The usual “ripoff” accusations ensue amongst contest entrants.
The icon was the winning entry on Crowdspring, and upon submission, the designer had affirmed in their ‘disclosure’ that they had “created everything in [their] entry and [they] didn’t copy anyone else’s concept.”
And who entered the icon? Only the second most active “creative” on Crowdspring, having entered a total of 636 contests, winning 33 times.
Full info and links here on SpecWatch.