Ethereum Co-Founder Joseph Lubin Highlights the Risks of AI Control by Major Tech Companies

The cryptocurrency sector is on the verge of a significant turning point, driven by advancements in artificial intelligence (AI), according to Joseph Lubin, CEO of Consensys and co-founder of Ethereum. In a recent interview, Lubin emphasized that autonomous agents can facilitate transactions, coordinate activities, and verify each other on decentralized networks, utilizing crypto infrastructure as the foundation for machine-driven operations. Lubin, who is set to speak at Consensus Miami 2026, expressed his support for the idea that blockchain technology is suited for machine intelligences, but he does not envision humans being replaced. Instead, he predicts that increasingly sophisticated interfaces will simplify complexity, enabling users to interact with crypto systems through intent rather than manual inputs, with AI serving as the intermediary layer between individuals and protocols. However, this vision also carries risks, as Lubin warned that if AI infrastructure remains concentrated among a few large technology firms, it could lead to trouble. He stressed that decentralized systems and cryptography will be crucial in ensuring accountability and enabling machines to verify each other in transparent environments. The evolution of products like MetaMask, a Consensys product, reflects this shift. Lubin described the wallet as being rebuilt as a new type of neobank that users own and control, part of a transition toward a personal money operating system. AI-powered agents could act on behalf of users, managing assets and executing transactions within a growing decentralized economy. Lubin also pointed to structural changes in the Ethereum ecosystem, including the rise of corporate chains, which he expects to become more common as companies seek higher throughput and greater control over their infrastructure. While he acknowledges the growth of stablecoins, he views them as a stepping stone toward more fully decentralized financial systems. Ultimately, Lubin predicts that traditional finance and decentralized finance will converge, resulting in a more granular and programmable global economy. Despite the potential risks of quantum computing, Lubin adopted a measured tone, stating that Ethereum developers have been preparing for this eventuality for years.