A review.Integrating neural cultures developed through synthetic biol. methods with digital computing has enabled the early development of Synthetic Biol. Intelligence (SBI).Recently, key studies have emphasized the advantages of biol. neural systems in some information processing tasks.However, neither the technol. behind this early development, nor the potential ethical opportunities or challenges, have been explored in detail yet.Here, we review the key aspects that facilitate the development of SBI and explore potential applications.Considering these foreseeable use cases, various ethical implications are proposed.Ultimately, this work aims to provide a robust framework to structure ethical considerations to ensure that SBI technol. can be both researched and applied responsibly.