Coinbase Wallet Extension

I had created a wallet via the Coinbase Wallet Extension on Chrome some time back and had been depositing some BTC into it for some time. My last deposit was June 1, 2026, and I had around $2600. Last I checked the wallet was back in July and today when I logged in it had 0. The transaction history shows that everything was transferred to another address on August 4. I did not make this transfer. I am totally confused/lost right now as to how this might have happened. The wallet used to be locked all the time and the password is in my password manager. Was this extension not safe?.