As per your query, we want to inform you that Samsung provides Knox security to ensure that confidential & sensitive data stays safe at every layer of Samsung Galaxy devices. Knox secures Android mobile devices through hard-wired protections while also serving specific management & data security needs. However, we would suggest you to please avoid using third-party applications and web browsers. There is no chance to hack the device by third party if you don't have shared any information, password or any other details of your and your device with anyone.
