Decentralized finance (DeFi) has become one of the most important parts of Ethereum. However, Vitalik Buterin now says the space needs to mature. He believes DeFi must move beyond hype and focus on building systems that are secure, private, and truly decentralized.
Recently, he explained that the Ethereum Foundation will not support every DeFi project automatically. Instead, the Foundation will back only those projects that meet higher standards.
Not All DeFi Is the Same
Buterin made it clear that DeFi is very important to Ethereum. It allows people anywhere in the world to save, trade, and manage money without banks or middlemen. That freedom is powerful.
However, he said the Foundation does not want to support “on-chain finance” just because it exists on the blockchain. A project must be:
- Open-source
- Permissionless
- Focused on security
- Designed with privacy in mind
- Built to reduce centralized control
In short, branding alone is not enough. The structure of the protocol matters more than the marketing.
What Is the “Walkaway Test”?
One of the key ideas Buterin introduced is called the “walkaway test.”
A protocol passes this test if it continues to work even when the original team disappears. If founders leave, turn hostile, or get hacked, the system should still function.
Many DeFi platforms today still rely on:
- Admin keys controlled by a small group
- Upgrade systems that insiders manage
- Centralized or weak oracle setups
- Front-end controls that can be restricted
Although these tools may make development easier, they also create risk. If too much power stays in a few hands, the system is not truly decentralized.
Therefore, the Ethereum Foundation wants DeFi projects to reduce these risks and move closer to full trustlessness.
DeFi Must Innovate Again
Buterin also said that early DeFi succeeded because it created new financial ideas. For example, automated market makers (AMMs) changed how trading works on blockchains.
Now, he believes builders should aim for deeper innovation again. Instead of just improving existing products slightly, developers should focus on bigger problems like:
- Better risk management
- Long-term financial planning tools
- Stronger protection during liquidations
- More reliable price data systems
Small upgrades are helpful. However, real progress comes from solving deeper challenges.
Security and Privacy Are Top Priorities
For 2026, the Ethereum Foundation wants to focus heavily on security and privacy.
Buterin described DeFi as a system that includes both on-chain smart contracts and off-chain tools like wallets. Because of this, security must cover the entire system.
The Foundation plans to encourage:
- Stronger audits
- Clearer development standards
- Safer wallet designs
- AI-assisted contract verification
- Tools that help users avoid mistakes
Oracle security is also a major concern. Many DeFi systems depend on outside data. If that data becomes unreliable, the whole protocol can break.
Privacy is another big focus. Buterin said privacy should not be optional. Instead, it should be built into DeFi systems from the start. Better privacy can reduce problems like front-running and liquidation sniping.
Better Coordination With Builders
The Ethereum Foundation also wants better communication with developers. Clear standards can reduce confusion about risks and responsibilities.
Although Ethereum remains permissionless, the Foundation will choose carefully which projects it actively supports. The goal is to guide DeFi toward stronger, safer, and more decentralized systems.
What This Means for the Future
Ethereum will still allow anyone to launch a protocol. However, projects that rely heavily on centralized control should not expect official support.
For builders, the message is simple:
Create systems that can survive without you. Reduce insider control. Focus on privacy. Strengthen security. For users, this shift could mean safer and more reliable DeFi tools in the long run.
In the end, Buterin is not criticizing DeFi itself. Instead, he is calling for the next stage of growth. DeFi must move beyond buzzwords and build lasting financial infrastructure that truly reflects Ethereum’s core values — openness, freedom, and decentralization.
