Sam Blackshear, co-founder and chief technology officer of Mysten Labs, the company behind the Sui blockchain, announced he is joining artificial intelligence firm Anthropic to focus on AI security as the technology reshapes the dynamics of cyber defense.
A Shift From Blockchain to AI
Blackshear, a well-known figure in blockchain engineering, revealed his move to Anthropic, the developer of the Claude family of AI models. His departure marks a notable transition from decentralized ledger technology to the fast-growing field of artificial intelligence safety, where major labs are competing to build tools that are both powerful and secure.
At Mysten Labs, Blackshear played a central role in developing the technical foundations of the Sui network, including its Move-based smart contract architecture. His engineering background positions him to contribute to the increasingly urgent conversation around securing AI systems against misuse.
As AI advances, the line between attacker and defender is being redrawn in real time.
The Growing Stakes of AI Security
Blackshear framed his decision around a fundamental concern: the way AI is altering the balance between those who seek to exploit systems and those working to protect them. As models become more capable, they can be wielded by malicious actors to accelerate attacks, but they also offer defenders new tools to detect and prevent threats.
Anthropic has positioned itself as a safety-focused AI company, emphasizing responsible development and alignment research. Bringing on engineers with experience securing high-value systems like blockchains aligns with that mission, particularly as the industry grapples with adversarial risks.
The move also underscores a broader trend of talent flowing between the crypto and AI sectors, two of the most closely watched areas in technology. Key considerations driving this shift include:
- The rising sophistication of AI-enabled cyber threats
- Growing demand for engineers skilled in securing complex systems
- Increased investment and competition among leading AI labs
Blackshear's transition signals that expertise honed in the blockchain world is finding new relevance in the race to build safer and more resilient AI.