Privacy as traditionally understood is becoming obsolete due to the pervasive nature of data sharing, data brokerage, and generative AI, which collectively dilute individual efforts to maintain secrecy. As a result, cybersecurity principles such as zero trust and least privilege are increasingly relevant to personal privacy. Zero trust in this context involves assuming that anything shared online may become public and requires continuous verification of identity and intent. Least privilege suggests that individuals should share information selectively, segment their identities for different aspects of life, and regularly review and manage their data exposure. The shift from secrecy to selective authenticity emphasizes the importance of deliberately managing one's digital presence, curating what information to share and with whom, as a form of modern self-defense. This new approach requires being intentional about what is public, personal, or irrelevant, acknowledging that while full control over data leaks is impossible, managing one's digital posture is within reach.