Why Is Over-Collateralization Necessary in Many DeFi Protocols?

Over-collateralization is necessary to create a safety buffer against the high volatility of crypto assets. Since the collateral's value can drop quickly, requiring more collateral than the debt ensures the protocol can liquidate the position and cover the debt even after a sudden price crash, maintaining the protocol's solvency and protecting the funds of other users.

How Does Over-Collateralization Protect a DeFi Lending Platform from Price Oracle Manipulation?
How Does a Sudden Drop in Implied Volatility Affect the Gamma of a 0DTE Option?
How Does Over-Collateralization Protect a DeFi Lending Protocol?
How Does a ‘Safety Module’ or ‘Staking Module’ Function as a Last Line of Defense against Protocol Insolvency?
What Is “Over-Collateralization” and Why Is It Common in DeFi?
What Is a ‘Backstop Liquidity Provider’ in Derivatives Trading?
How Quickly Can Implied Volatility Typically Drop after a Major Event Has Passed?
Why Is ‘Over-Collateralization’ Necessary for Crypto-Backed Stablecoins?