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Is Bitcoin really secure? How can we trust in something that is “public”? Well, James D’Angelo has the answer.

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Big Numbers

A sender encrypts the data for security with its private key. Comment on its data security

While using Asymmetric cryptography for encryption ( not for digital signature) of data only public key is used. No security if data is encrypted using private key data can be easily decrypted by using public key of same node . 11 more words

Data Security