Yes, if you have created a new technology that can predict individual behavior and push customized ads, then lack of transparency and not informing users that their behavioral data is used for commercial purposes does pose ethical considerations. Here are some ethical and responsible considerations: 1. **Informed consent**: Users have the right to know how their data is collected, used, and shared. Not informing users about how their data is used may violate ethical standards and in some regions may violate data protection regulations (such as GDPR). 2. **Right to privacy**: Personal privacy is a fundamental right. Using user data for commercial purposes without providing information or the option to opt out may violate the user's privacy rights. 3. **Transparency**: Transparency is an important factor in building trust. Providing users with clear information about data collection and use helps to enhance trust and maintain a good corporate image. 4. **Data security**: Ensuring the security of user data to prevent unauthorized access and leakage is an important responsibility when developing and maintaining technology. 5. **Data misuse**: Consider the potential consequences of data use and the risk of misuse to ensure that the use of technology does not have a negative impact on users. 6. **Ethical responsibility**: Ethical responsibility goes beyond legal responsibility, meaning that even if certain practices are legally permissible, they may still be morally inappropriate. Developers and companies have a responsibility to guide their business decisions in the best interests of users and society. With these factors in mind, ethical best practices should always be followed when developing and using technology, and relevant laws and regulations should be followed to ensure that the rights and interests of users are respected and protected.