Are USDB and BUSD the same?

Could you please clarify for me if USDB and BUSD are indeed the same? There seems to be some confusion in the crypto community regarding these two tokens. While they may share similar functionalities and use cases, are they issued by the same entity? Do they have identical technical specifications and security measures? Or are they simply different tokens that serve a similar purpose in the decentralized finance landscape? Clarifying this would be invaluable for investors and traders looking to navigate this complex yet exciting sector.