Not Your Keys, Not Your Coins
Web3 / wallets security
This principle asserts that cryptocurrency ownership is only truly secured when an individual controls their private keys. Private keys are cryptographic credentials that grant exclusive access to move or spend digital assets. When users store coins on centralized exchanges or custodial platforms, they rely on third parties to safeguard these keys rather than holding them directly. This arrangement creates counterparty risk, meaning users depend on the platform's security, solvency, and honesty. The phrase encapsulates crypto's core philosophy: self-custody and financial autonomy through direct key control.
Example
The 2022 collapse of FTX demonstrated this principle dramatically. Customers who stored assets on the exchange lost access when FTX filed for bankruptcy, unable to recover their funds because they never controlled the private keys. Those who had withdrawn crypto to self-custody wallets retained full control regardless of FTX's failure.
Why It Matters
Understanding key ownership is foundational to avoiding catastrophic losses. It encourages users to evaluate custody options, learn wallet management, and recognize that exchanges are convenient but inherently risky compared to self-custody solutions that provide complete asset control.
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