Major blockchain players unite on privacy standards
The Enterprise Ethereum Alliance has launched a new Privacy Working Group that brings together some of the biggest names in the ecosystem. Polygon, EY, Consensys, and ZKsync are all involved, working alongside the Ethereum Foundation. The goal is pretty straightforward—to create clear guidelines for businesses that want to use Ethereum and Layer 2 networks but need better privacy tools.
I think this move makes sense when you consider where enterprise adoption stands right now. Companies have been hesitant to fully commit to blockchain because they’re worried about exposing sensitive financial data. Tokenized assets, supply chain information, internal transactions—none of that can be public in the way regular Ethereum transactions are.
The privacy problem holding back adoption
Mo Jalil from the Ethereum Foundation put it bluntly: operational anonymity is the biggest blocker for serious corporate use. When he says “operational anonymity,” he’s talking about the ability to conduct business on-chain without revealing everything to competitors or the public. Banks can’t have their internal transfers visible to everyone. Corporations can’t expose their supply chain partners or pricing structures.
The working group isn’t starting from scratch, of course. There are already privacy technologies out there—zero-knowledge proofs, various encryption methods, different Layer 2 solutions. But the landscape is fragmented. Each company has been experimenting separately, which creates risk and slows everything down.
A coordinated approach to privacy solutions
What’s different here is the coordinated approach. Instead of each organization building their own privacy solution in isolation, they’re going to share knowledge and create interoperable building blocks. The group plans to publish a technical document that maps out current privacy approaches, and they’ll update it twice a year to keep pace with how fast this technology evolves.
That regular updating is important, I think. Blockchain privacy tech isn’t static—new approaches emerge, existing ones get refined, and security considerations change. Having a living document that reflects current best practices could help companies make better decisions about what to implement.
Looking toward practical implementation
The working group seems focused on practical outcomes. They’re not just doing theoretical research—they want to create standards that actually get used. Interoperability is a key theme here. If different companies build on different privacy technologies, they still need to be able to interact with each other. A bank using one system should be able to transact with a supplier using another.
Compliance is another big piece. Global banking regulations are strict about privacy and data protection. Any blockchain solution has to meet those standards, which adds another layer of complexity. The group includes organizations like EY that understand these regulatory environments, which suggests they’re thinking about real-world implementation from the start.
This feels like a necessary step forward. Privacy has been one of those persistent challenges for enterprise blockchain adoption. Companies want the benefits of blockchain—transparency where it makes sense, immutability, efficiency—but they need control over what information gets shared publicly. Solving that tension could unlock a lot of potential use cases that have been stuck in pilot phases.
The twice-yearly updates to their technical publication show they understand this is a moving target. Privacy technology will keep evolving, and standards need to evolve with it. Maybe this coordinated approach will help accelerate adoption by giving companies more confidence in their implementation choices.
