Questions tagged [cryptocurrency]

A cryptocurrency is a digital currency that uses cryptographic methods to secure and verify transfer of given currency. Tag should be used when talking about the security of, and surrounding, the implementation and use of cryptocurrencies.

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How secure is Libra considering Visa and Mastercard are behind it?

Libra is the upcoming cryptocurrency by Facebook which Facebook claims is supported by variety of tech companies including but not limited to Mastercard, Paypal and Visa. Facebook also enforces a real ...
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Cryptocurrency recovery passphrases in the cloud?

Currently, my recovery passphrases are just handwritten on a bit of paper. I know myself and don't feel very confident that I'll still know where that paper is when I need it in however many years. So ...
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Who really controls Bitcoin? [migrated]

Surely if there was a major bug discovered in the Bitcoin architecture, there is someone who would have the power to push an update and fix it. Then I assume that they could also make changes for ...
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ZsNark : are there security consequences of using the same proving keys for 2 copies of the same chain?

I just stumbled over those 2 contracts. While they maintain their own chain, they refer to the same smart contract’s address for proving keys. Beside privacy problems, are there other security ...
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Someone is Cryptomining from my Google Compute Engine Instance

I run an airflow instance which python process scheduler, which is used to trigger different python ML process which has no relation to crypto mining. This is the process which is running this ...