– Most "unlock tools" ask for your Activision or Facebook login credentials. They are designed to steal your account.
Most "unlock tools" found on YouTube or shady forums are . They trick the game app on your phone into thinking you own the items. You might even see the skins in your menu. But the moment you try to use that skin in a multiplayer match, the game checks with the server. The server says, "This player does not own this item," and the game crashes, disconnects, or simply reverts the item to a default state. cod mobile unlock tool