Last June, a dollar stablecoin called apxUSD lost its peg. It had traded at $1.00 for months, but then suddenly fell to $0.74. This is one of many similar cases in the last year or so.
Nothing about the token itself changed. What changed was the thing behind it: When the backing of a stablecoin drops below par, or suddenly vanishes, the stablecoin price follows.
Here is the part that matters for you. If you had USDC in a lending market that accepted a depegging stablecoin as collateral, you were exposed to that share. You never bought it, but yet it was sitting underneath your deposit.
That is why we monitor risk continuously. This article explains what that means and how we do it.
Return is payment for risk
Finance has one rule that survives every market: a return is what you get paid for taking a risk. Higher return, more risk. There are no exceptions that last.
So the real question is never "what is the yield". It is "what am I being paid for". If you can't answer that, you can't tell whether the yield is fair, and you certainly can't tell when it stops being fair.
In traditional finance, someone answers that question for you. Rating agencies label bonds. Banks have risk desks that look at every position every day. You don't see this work, but it is priced into what you're offered.
Why DeFi is harder
DeFi has none of that by default, and three things make it harder than a bank account.
Your money sits behind collateral you didn't pick. More than half of everything deposited in DeFi is in lending markets, roughly $50 billion of $89 billion according to DefiLlama. In a lending market, your deposit is lent to people who post collateral. Their collateral is your risk. It can be ETH. It can be a synthetic dollar backed by a single stock. You don't choose.
There are no circuit breakers. When something breaks, exits are first come, first served. The first people out get their money. The people behind them can find the pool empty, or the exit closed for days. Speed is the difference between a loss and a scare.
Nobody puts a label on it. There is no accepted standard for DeFi risk. Every strategy is built differently, and a risk model that fits one does not fit the next. Some methods are emerging. None of them are the kind of label you can read off a screen.
Why continuous, not once
Most people check a pool once, before depositing. That answers yesterday's question.
The risk you accepted when you deposited is not the risk you hold today. Collateral gets added to a market, a stablecoin's backing changes, a pool's liquidity drains while the yield still looks fine. The number on the screen updates in real time but the reasons behind it do not.
Continuous monitoring is the only way to close the gap between the moment a risk changes and the moment you act on it. In the last twelve months that gap has been where the money was lost.
Here are some incidents Zyfai steered around in that period:
October 2025 synthetic-dollar stress. Ethena's USDe briefly printed $0.65 on Binance and dragged other synthetic dollars with it.
Stream Finance. Around $65 million of private-credit exposure behind deUSD turned out to be unrecoverable.
Resolv's USR depeg.
KelpDAO exploit and rsETH contagion. The damage spread through Aave and Fluid markets that held rsETH as collateral.
MSY depeg.
Moonwell/Mamo exploit.
None of these were predictable in advance. All of them were avoided by Zyfai’s automated systems and AI risk monitoring agents.
How we do it
We won't go into the technicals here. But the approach is simple enough to explain in four layers.
We check every pool several times a day. Has the money in the pool dropped sharply? Is the yield suddenly out of line with its own history? Is there enough free liquidity for everyone to get out? Is one wallet holding too much of it? A pool that trips these checks stops receiving deposits. You can see every check, and whether it passed, on our risk dashboard.
We audit every asset a pool accepts as collateral, and then we keep watching it. Before an asset is allowed in, we ask what actually backs it, whether it holds its peg, and whether a million dollars of it could be sold without moving the price. After it is in, we keep asking. And we look through: a USDC market that accepts a synthetic dollar is, underneath, exposed to whatever backs that synthetic dollar. We map that chain all the way down, so that when a preferred share falls below par we know which of our positions it touches.
The automation acts on it. This is the point of all of the above. Monitoring that ends in an alert nobody reads is not monitoring. When a pool fails a check, funds don't go in. When a safer or better option exists, funds move. When a pool's liquidity runs short, the part of a position that can leave, leaves, rather than waiting with the rest.
We've just added Glider Monitor by Hexens. It monitors our 80+ pools in real time for attacks, newly disclosed vulnerabilities, and safety rule violations. Attack alerts trigger an automatic exit to another approved pool, or leave funds idle if no opportunity passes the checks.
What this does and doesn't do
None of this removes risk. Nothing in DeFi can. A pool that passes every check can still be hacked. A pool that fails one may do fine.
What continuous monitoring does is shorten the time between something changing and you reacting. In markets with no circuit breakers, that time is the whole game.
If you want to see it working, the risk dashboard shows every pool we watch, every check it passed or failed, and every asset we've reviewed. Look at what's behind your yield. It is the only way to know what you're being paid for.
About Zyfai
Zyfai gives you self-custodial access to autonomous low-risk DeFi. Our customizable rule-based Agents transform your idle capital into productive assets, rebalancing between curated opportunities.
The result is sustainable and risk-adjusted yield, where your capital is always working and under your control.