Hello. Does anyone knows why this address is sending bitcoins to so many addresses. I got 4€ from it, don't even know why. Just wondering maybe someone knows something.
Possibly dust attack, but the amount spent on dust attack will be a lot less than 4 Euros and the attacker will send an amount that is the minimum funds that can be sent which poses a risk to your privacy.
Dust Attack, what it is, why it is dangerous, and how to prevent falling to it by fillippone will give you an idea of what is dust attack and whether you should worry about it or not.