If you are using a reliable, high-quality VPN service, your passwords, online banking and other sensitive data will not be disclosed under normal circumstances. The main function of a VPN service is to encrypt your data transmissions to ensure your privacy and security. By using a VPN, your data traffic is encrypted and cannot be easily stolen by network eavesdroppers and hackers. This can effectively protect your passwords, online banking and other sensitive data.

However, if you are using a low-quality or untrustworthy VPN service, you run the risk of leaking sensitive data. Some bad VPN service providers may log your traffic data and may even steal your passwords and other sensitive information. Therefore, it is recommended that you choose a trustworthy and well-known VPN service, and carefully study its privacy policy to ensure that it can protect your privacy and security. Also, it is best not to use public wireless networks for sensitive operations such as banking, as public wireless networks are inherently a security risk.