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Decentralized Public Ledger and Privacy Problem

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“Decentralized Public Ledger”, we call it blockchain!
The name implies that everything is public, which means again that “private”, “privacy” – those are not the concepts in that world.
When you think the data you keep in smart contracts is private, hackers are stealing your precious privacy.

I made a Solidity game that will show you how to steal.
As long as you know the way hackers use, you can keep your privacy at least in hash.

⚠️ Don’t try it on mainnet.

https://github.com/maAPPsDEV/privacy-attack

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