That day, I met a trader who claimed to have thoroughly studied all technical indicators and risk control models. The result? Due to a 3-second delay in the oracle's quote, he was liquidated alive in a calm yet eerie market. He looked at the liquidation record with a bitter smile: "No matter how sophisticated the strategy, it’s useless. Turns out, what killed me wasn’t the candlestick chart, but a data source I never thought of."

This is the darkest irony in crypto trading. Your meticulously crafted stop-loss, your well-understood position management, your repeatedly verified entry points—all could be destroyed by something invisible and intangible—the real asset price.

**The root of the problem is here**

When you deposit ETH into a DeFi protocol, leverage, and trade derivatives, the smart contract needs a critical piece of information: How much is ETH worth right now? Where does this price come from? From the oracle.

It sounds straightforward, but hidden dangers lurk:

- 2-second delay — lagging prices, which could lead to incorrect liquidations during volatile market swings;
- Decimal point errors — the system thinks your collateral is insufficient and forcibly liquidates;
- Data manipulation — the entire DeFi risk model collapses instantly, and the protocol could be drained systematically.

All your risk control measures are nullified the moment the source data is wrong. That’s why many seasoned players carry a shadow in their hearts—the "invisible killer."

**Someone decided to change this situation**

Leo Su and Simon Shieh, founders of APRO, saw through this: instead of being the Nth simple data intermediary (oracle), why not become a "Data Forensic Auditor"?

Traditional oracles are like mail carriers—they deliver numbers from point A to point B, caring little about the contents. APRO’s approach is fundamentally different:

The first layer is AI security checks — before data enters the protocol, it passes through a machine learning model that isolates abnormal data; the second layer is a global jury — a consensus mechanism among multiple independent verification nodes to ensure that single points of failure or manipulation cannot succeed.

Simply put, it’s an upgrade from "blind forwarding" to "active auditing."

What does this mean for the entire DeFi ecosystem? Liquidation is no longer a probabilistic event but is genuinely backed by technology. Traders can focus on their trading strategies instead of constantly worrying about oracle failures.

The crypto market is never short of new concepts; what’s truly scarce are technologies that genuinely solve problems. From this perspective, APRO addresses the core issue—that’s why it’s worth paying attention to.