Antwort auf: Adressvergiftung
DEPOSIT and WITHDRAWAL pathways on the Blockchain are completely independent (DEPOSIT pathway using a public key that anyone can use place crypto into the wallet, and the WITHDRAWAL pathways using the private key for outbound transactions from your wallet).
The only way I know of a withdrawal being able to be accomplished is by use of the private key. I assume you have kept your 24 word seed phrase secure. Any chance you may have accepted a contract?