To be honest, many developers feel secure after integrating decentralized oracles. But this idea is a bit naive.

Even if node operators are professional and dedicated enough, certain market risks still cannot be prevented. It's like meteorological departments can measure temperature and pressure but cannot change the trajectory of a typhoon—your funds might just be in the eye of the storm.

**Oracles can see the manipulation tactics but can't prevent them**

Common manipulative tactics in on-chain transactions include: false order stacking, whales placing tens of millions of fake orders to induce market direction; flash crashes or surges, instantly dumping or pumping on low-cap or illiquid assets; cross-platform coordination, creating abnormal prices on one exchange to influence on-chain price feeds; front-running, pre-positioning before data is actually on-chain.

Oracle nodes can observe these price changes, but the problem is they can't distinguish whether the price movement reflects genuine supply and demand or is deliberately manipulated. Especially for assets with poor liquidity, manipulation costs are extremely low, while the potential profits can be doubled.

**What can APRO's technical solutions do**

Oracle networks like APRO have implemented several defenses: cross-verification from multiple data sources, automatic filtering of abnormal fluctuations, and time-weighted average price (TVWAP) to smooth out price spikes. These mechanisms can block some manipulations, but frankly, they cannot completely eliminate malicious behaviors inherent in the market itself.

Therefore, for developers, when integrating such data sources, they need to have a clear understanding: support which assets? Mainstream tokens or long-tail tokens? How much risk can they tolerate? Ultimately, these decisions are up to them.