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Use stablecoins, DeFi, and onchain apps carefully

Understand where yield, pegs, bridges, and application risk actually come from.

Outcome

Trace each product through issuer, contract, collateral, oracle, governance, and exit risks.

Stablecoin models and failure modes

A stable target is a design goal, not a guarantee of redemption or market price.

5 min · Reviewed Sep 2, 2026

DeFi, yield, and smart-contract risk

Onchain finance replaces some intermediaries with contracts while adding code, oracle, liquidity, and governance dependencies.

5 min · Reviewed Sep 2, 2026

NFTs, tokenization, and cross-chain apps

A token can point to rights or media without automatically granting ownership, permanence, or legal enforceability.

5 min · Reviewed Sep 2, 2026

Put it into practice

Use the model before using money

Map the dependencies behind a fictional yield Stablecoins are designed to be steady—not risk-free

Chapter check

Explain the decision, not just the term.

Four questions. Answers and explanations are shown after each choice.

01Which question most directly tests a stablecoin's exit path?

AIs the logo familiar?BHow many social followers does it have?CIs the token price shown to four decimals?DWho can redeem, against what reserves, and under which terms?

02Before evaluating a DeFi yield, what should you identify first?

AWho pays the return and which dependencies can failBThe color of the interfaceCWhether the rate is higher than a bank accountDThe number of wallet connections

03A DeFi position uses a bridged token, an oracle, and an upgradeable lending contract. What does this imply?

AOnly the lending interest rate mattersBThe position is risk-free because it is on-chainCSeveral independent technical and governance dependencies can failDThe bridge guarantees redemption

04Why can an overcollateralized loan still be liquidated?

AOvercollateralization freezes every market priceBCollateral prices and protocol thresholds can change before repaymentCLiquidations require a seed phraseDInterest is always paid by the protocol treasury

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