Ethereum co-founder Vitalik Buterin is championing open-source and transparency once more, now urging governments and industries to adopt verifiable infrastructure across sectors such as health, finance, and governance.
In a blog post on Wednesday, Buterin warned that centralised systems undermine trust, explaining that reliance on opaque corporate technology creates risks of abuse and monopolisation as digital infrastructure becomes essential to daily life.
He also said societies that build and control technology gain more than those that only consume it, and that transparency can help counter fragmentation and political distrust.
Buterin highlighted healthcare as a key example, stating that closed medical technologies encourage “monopolies and surveillance” while discouraging public confidence. He pointed to vaccine distribution during the COVID-19 pandemic as evidence of how proprietary systems fueled skepticism, contrasting that with open initiatives like PopVax that lower costs and improve credibility.
…If this kind of personal health data is insecure, someone who hacks it can blackmail you over any health issues, optimize pricing of insurance and healthcare products to extract value from you, and if the data includes location tracking they know where to wait for you to kidnap you. And in the other direction, your location data (very often hacked) can be used to infer information about your health.
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In traditional finance, Buterin shared his experience dealing with a common bureaucratic nightmare (filling in papers), when he had to fill in and sign a form required for a legal function, he said. He compared the speed of signing a crypto transaction to the half-hour and US$119 (AU$183) needed to send a notarised document abroad, arguing that blockchain systems demonstrate efficiency gains from open infrastructure.
I had to print out the form, sign it, walk over to a nearby DHL, spend a bunch of time filling in the paper form, and then paying for the form to be express-shipped halfway across the world. Time required: half an hour, cost: $119. On that same day I had to sign a (digital) transaction to perform an action on the Ethereum blockchain. Time required: 5 seconds, cost: $0.10
Vitalik Buterin He also stressed that voting systems require verifiable hardware and software. Proprietary machines, he said, are “black boxes” that cannot establish legitimacy, whereas open designs could enable both transparency and security.
Buterin concluded that while closed platforms may dominate by default, steering toward open and auditable systems is critical for safeguarding trust in core public and financial infrastructure.
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