Is there a real trade hack?

[tartarusspawn]

This guy that played wit said that there is such a thing as a "trade hack" and he wasnt sure if there were ne made for 1.10 or w/e i was wonder if it was possioble to get one???

there is one, out there but i do not think it public. ive been hit by it twice and know of no way to protect from it.

from what i can tell this is how it works. using enigma as example.

hacker puts enigma in trade window and clicks accept. activates hack and switch enigma for another item.

no mater how many times victim checks victim will see enigma.

i got a 1-2 fire damage small charm in a enigma trade the second time i was hit by this hack.