The emerging concept of Decentralized Public Key Infrastructure (DPKI) offers a potential solution to the limitations of centralized PKI systems. Traditional PKI relies on trusted third parties (certificate authorities) to issue and manage digital certificates, leading to concerns about security, privacy, and single points of failure. DPKI utilizes decentralized technologies, such as blockchain and distributed ledgers, to create a more efficient, transparent, and secure system for managing public keys and certificates. Key trends include growing interest from cybersecurity professionals, potential for increased user autonomy, and opportunities for integration with Web3 projects. Challenges include regulatory hurdles, technical complexity, and the need for widespread adoption. However, the shift towards DPKI could redefine online security and trust in the digital age.