(a) use the App in any illegal way, for any unlawful purpose, or in any way which does not keep to this agreement, or act fraudulently or maliciously, for example, by hacking into or inserting malicious code, including viruses, trojans or harmful data, into the App or any operating system, or by attempting to gain unauthorised access to the App, the server on which any of the App is stored or any server, computer or database connected to the App;