Recently, I came across an interesting topic discussion. Someone asked whether oracle projects are truly decentralized, especially whether data might be secretly sold to third parties. The comments below are quite heated, but basically everyone is talking past each other, and no one can really give a clear answer.

This actually touches on a fundamental issue in Web3: when project teams say "we may need to share data with third parties," is that a normal business requirement or a hidden risk?

Let's start with a very practical point — a fully decentralized project that doesn't rely on any third parties sounds ideal in theory, but in reality, it almost doesn't exist.

Just think about it. Even the most excellent restaurant needs to purchase ingredients, and the safest financial institutions rely on professional transportation services. Infrastructure like oracles is the same; during operation, it inevitably requires: cloud service providers to maintain servers and storage, security audit teams to monitor systems, and compliance teams to handle legal matters.

All these steps may involve data contact. But the core issue isn't whether data is shared, but *how* it is shared.

Some projects' approaches are worth examining. They set strict rules for data sharing:

**Rule 1: Clear Purpose**

Data sharing can only be used for specifically declared purposes — such as ensuring system stability or complying with legal requirements. Third parties have no right to use this data for their own business expansion, user analysis, or resale for profit.

For example, if data needs to be shared with a cloud service provider due to storage requirements, it can only be used for storage, not for other purposes. This is called bounded sharing.

This is the true professional attitude — not avoiding third-party contact, but strictly controlling the permissions and scope of contact. In the rapidly evolving Web3 space, such strict definitions in detail often distinguish reliable projects from speculative ones.