A wallet address can, in a way, be compared to a bank account number. This means that if someone has your wallet address, this person can transfer digital currency to your address. One difference, however, between bank payments and cryptocurrency transfers is that all cryptocurrency transfers are visible on the blockchain. If someone is aware of your wallet address, they can see how much money went in and out of your wallet, as well as how much it contains at the moment.
Nobody is able to claim your assets by knowing your wallet address.
Want to know more about how a crypto wallet works and what a wallet address is?
You can read more about it in this Bitvavo Learn article.