I have seen that happen in waves wallet, where you will receive unknown tokens with no value attached to it, samething have been experienced in ERC wallets and now Tron as well, therefore since they have no value just overlook them and pretend as if they are not there and since you are using like Trust wallet, then you can actually hide them from showing, hence so far your private keys and so on are kept safe, your assets are secured. However, many people are always skeptical and anxious of their funds and assets, therefore if that is the case with you, you can actually create a new wallet and transfer everything to the new wallet, while securing your details.