I would like to make you a suggestion about a new update on steam, so that you add a button with a lock icon to your inventory, if you activate it in the Steam settings, you need to enter a password, create a password and after that you can lock any item in your inventory. the inventory will then be blocked in red, this is a sign that the item cannot be transferred or sold to anyone, and to remove it, click on it, enter the password that you entered when activating in the settings, and the lock will turn gray, which means that the item can be sold or exchanged so that you can reduce the likelihood that that will be stolen or resold from hacked accounts