Bitcoin Security and the Function of SHA-256

Quick breakdown of how Bitcoin is secured using the SHA-256 cryptographic algorithm.

How does Bitcoin stay secure? The answer lies in the SHA-256 cryptographic algorithm, which creates a unique digital fingerprint for every transaction. This makes the blockchain secure and unchangeable. Even Bitcoin Cash uses this technology! With SHA-256, Bitcoin's security is a core part of what makes it valuable. But how might quantum computing change things?
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