The topic of encryption backdoors has become a polarizing issue in the fields of cybersecurity and cryptography. On the one hand, governments and law enforcement agencies argue that backdoors are necessary to monitor and prevent criminal activities, especially in cases involving encrypted communications (Schneier, 2015). On the other hand, privacy experts and technology companies argue that encryption backdoors, by their very nature, weaken security and introduce vulnerabilities that could be exploited by malicious actors (AyrA_ch, 2022). Bitcoin, the world’s leading decentralized blockchain, represents an interesting case in this debate. Unlike other blockchains that may be influenced by centralized entities, Bitcoin relies heavily on its cryptographic foundations to ensure security and trust. However, questions arise: could Bitcoin contain an encryption backdoor? Is it possible that from the very beginning, a vulnerability was introduced into its cryptographic algorithms, either deliberately or by accident? This paper explores these questions by drawing on existing research and examining the case for and against backdoors in Bitcoin’s cryptographic structure.