The next generation of social platforms — those being built today or in the near future — has the opportunity to learn from Meta’s experience with Instagram’s encryption. The story of Instagram’s encryption journey contains clear lessons about what works, what does not, and what the next generation of platforms would need to do differently to provide genuine, lasting privacy protection to their users.
Lesson one: default encryption is the only durable encryption. Opt-in encryption will always see lower adoption than default encryption, regardless of user preferences. The structural design of opt-in features guarantees low uptake, and low uptake provides a convenient justification for subsequent removal. Next-generation platforms that want to offer genuine privacy protection must make encryption the default — not an option.
Lesson two: commercial models matter for privacy durability. Advertising-based platforms have structural incentives to maximize data access that make privacy commitments perpetually vulnerable. Next-generation platforms that want to offer durable privacy protection should consider business models that are not dependent on advertising revenue — subscription models, nonprofit structures, or other revenue sources that do not create incentives to access private message content.
Lesson three: privacy commitments need legal backing to be durable. Voluntary corporate commitments to privacy can be reversed by corporate decision. If the next generation of platforms wants privacy protections to be lasting, those protections need to be embedded in legally binding frameworks — regulatory requirements, contractual commitments, or constitutional protections — that cannot be unilaterally reversed by corporate decision.
Lesson four: transparency must be substantive rather than formal. Communicating privacy changes through terms of service updates and help page revisions satisfies the minimum formal requirement of disclosure without providing genuine user notification. Next-generation platforms should design transparency mechanisms that actually inform users about privacy changes — prominent notifications, clear plain-language explanations, and reasonable advance notice.