If you develop an app that steals user data, even if you claim it is only for ethical hacking, you still have a responsibility to ensure it is not used for malicious purposes. This involves multiple levels of responsibility, including legal, ethical, and professional responsibilities: 1. **Legal responsibility**: Many countries and regions have strict laws against unauthorized data access and privacy violations. If your app is used for illegal purposes, you may still face legal consequences, even if you are not directly involved. 2. **Ethical responsibility**: As a developer, you have a responsibility to ensure that your technology is not used to cause harm to others. This means that you need to take steps to protect how your app is used and ensure that it is only used by authorized people in appropriate environments. 3. **Professional responsibility**: In the field of information security and ethical hacking, there is a strict set of standards and best practices. Ensuring that tools and techniques are used safely and correctly is part of professional ethics. To prevent misuse, you may need to implement multiple protections, such as: - **Strict access control**: Ensure that only authorized users can use the app. - **Transparent usage agreement**: Clearly state the purpose of the application and require users to sign relevant agreements. - **Logging and monitoring**: Monitor the use of the application to detect and respond to any misuse in a timely manner. - **Encryption and security measures**: Protect the collected data from unauthorized access. Ultimately, the development and use of such applications requires special care and should be carried out within the framework of compliance with relevant laws and regulations. It is best to seek professional legal advice to ensure that you fully understand your responsibilities and potential legal risks.