Sam Blackshear, Co-founder and CTO of Mysten Labs and the creator of the Move programming language, announced on Thursday that he will be leaving Mysten Labs to join Anthropic, where he will work in defensive security research. I am leaving Mysten Labs and joining Anthropic to work on defensive security research. Before co-founding Mysten Labs, he worked at Meta on the Diem project, where he created Move—a programming language designed for digital assets and smart contracts. Adeniyi Abiodun, Co-founder and CPO of Mysten Labs, congratulated Blackshear and expressed happiness for his colleague’s next chapter. This contrast makes the transition from blockchain infrastructure to AI security particularly intriguing, rather than a routine personnel change between two tech companies.