How do you ensure data privacy in social media apps?

I’m working on developing a social media app and data privacy is a top priority. Given the sensitive nature of personal information shared on these platforms, what are the best practices, tools, and strategies to ensure strong data privacy? Specifically, I’m interested in techniques for data encryption, user consent management, secure authentication, and compliance with regulations like GDPR or CCPA. Any advice on how to balance privacy with user experience would be really helpful!