grey markets sellers's usually buy games during sales, humble bundle and hoard them, some are review copies which are sold, swapping, some games are bought through trading with digital currency. - All these games are safe.
Those games which are bought with stolen credentials are illegal and gets revoked.
There are many other methods which I don't know
Problem is we don't know how the seller got that game, sometime even the seller don't know the real origin as the game has been traded multiple times.
Those games which are bought with stolen credentials are illegal and gets revoked.
There are many other methods which I don't know
Problem is we don't know how the seller got that game, sometime even the seller don't know the real origin as the game has been traded multiple times.