Direct Answer
Crypto crises occur when leverage, custody risk, token-design failures, or counterparty concentration produce losses that exceed the collateral or reserves available to absorb them. The five episodes here cover exchange insolvency (Mt. Gox), smart-contract exploitation (The DAO), fundraising speculation (the ICO boom), exchange fraud and misuse of customer assets (FTX), and algorithmic stablecoin collapse (Terra/Luna). Each examines the specific mechanism, the speed of contagion, and what was visible before the event.
Crypto Crises: Historical Case Studies
This hub explains how leverage, custody, token design, liquidity, counterparty concentration, and governance can amplify losses in digital-asset markets. It is a mechanism-first collection: readers can move from broad explanation to specific historical episodes, compare events, and see where a superficially similar analogy breaks.
What to Watch Across These Events
Focus on stablecoin design, exchange risk, rehypothecation, smart-contract risk, leverage, runs, and bankruptcy. A useful comparison asks what had to stay true before the event, who was forced to act when conditions changed, how losses moved across balance sheets, and which policy tool addressed liquidity, solvency, inflation, confidence, or market functioning.
A useful question for any episode: could the mechanism be identified from publicly available information before the event, and if so, what would an investor have had to believe and do differently? The case studies here are written to answer that question explicitly, separating what was visible from what only appeared obvious afterwards.
Case Studies in This Category
Each case study examines the episode as a chain: the vulnerability that accumulated beforehand, the catalyst that triggered the event, how losses and stress transmitted through the system, what policy response followed, and how recovery unfolded. Links below go to the full case study for each episode.
Compare the Mechanism, Not Just the Headline
Two events can share a category label and still require different investor conclusions. A banking event driven by uninsured-deposit flight differs from one dominated by loan losses. A currency crisis under a hard peg differs from a floating exchange-rate adjustment. An inflation episode created by a temporary supply shock differs from one in which expectations and policy credibility become unanchored. The case studies here are designed to surface those differences explicitly, so the comparison produces a better-calibrated understanding of risk rather than a simple analogy.
Comparison across events in this category is most useful when it asks: what structural condition had to be in place before the event could occur? Which of those conditions were measurable in advance? What was the policy constraint that shaped the response? And how long did recovery take, compared to the episode's depth?
Frequently Asked Questions
What is custody risk in cryptocurrency and why does it matter?
Custody risk is the possibility that an entity holding cryptocurrency on your behalf loses, misappropriates, or misuses those assets. Unlike traditional finance, where custody is regulated and often insured, early crypto exchanges operated without equivalent safeguards. Mt. Gox held customer Bitcoin in hot wallets without adequate security and lost approximately 850,000 Bitcoin over several years to hacks and internal theft. FTX misused customer assets by transferring funds to its affiliated trading firm, Alameda Research, to cover Alameda's losses. In both cases, customers believed their assets were held safely while the exchange was insolvent.
What is an algorithmic stablecoin and why did TerraUSD collapse?
An algorithmic stablecoin maintains a target price not through direct reserves of that currency, but through a stabilization mechanism that creates or destroys a related token. TerraUSD (UST) aimed to maintain a 1-dollar peg by allowing redemption of 1 dollar of LUNA for 1 UST and vice versa. When UST demand fell and the peg began to break, the mechanism required creating large amounts of LUNA to absorb UST redemptions, which diluted LUNA's price, which reduced confidence in the collateral, which increased UST redemptions, producing a reflexive collapse. The design assumed that LUNA's market cap would always exceed UST outstanding; once that relationship reversed, the mechanism failed.
What was the DAO hack and why did it lead to a blockchain fork?
The DAO was a smart contract on Ethereum in 2016 that raised approximately 150 million dollars in ether from investors. A vulnerability in its withdrawal logic allowed an attacker to recursively call a function and drain approximately 3.6 million ether before the smart contract's balance was exhausted. The Ethereum community faced a choice: accept the loss as final, consistent with the principle that the code is the contract, or reverse the transactions through a hard fork. The community voted to fork, creating Ethereum with the hack reversed and Ethereum Classic carrying the original chain. The episode raised foundational questions about smart-contract risk and whether immutability is absolute.
What made the ICO boom of 2017-2018 unsustainable?
Initial coin offerings raised capital by selling newly issued tokens to investors, usually denominated in ether or Bitcoin, before a product existed. Several structural features made the boom unsustainable. Most projects had no clear token utility, revenue model, or user base. Regulatory oversight was minimal or absent in most jurisdictions. Many founders had no accountability to investors after raising funds. Tokens were highly liquid from the moment of issuance, allowing founders and early investors to sell before any value was created. The SEC's enforcement actions from 2017 onward, combined with a broad cryptocurrency price decline in 2018, ended the cycle. Studies suggest the majority of ICO projects failed or turned out to be fraudulent.