Tag: blockchain security

29 Mar
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Validator Selection for Staking: A Complete Guide to Maximizing Returns and Security

Posted by Steve Messa
03/29/2026
17 Comments

Learn how to select the best validators for crypto staking to maximize rewards and minimize risks like slashing. Covers key metrics, network comparisons, and practical steps.

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22 Feb
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Why Bitcoin Uses SHA-256 Hashing Algorithm

Posted by Steve Messa
02/22/2026
13 Comments

Bitcoin uses SHA-256 because it's the most secure, battle-tested hash function available. It powers mining, prevents tampering, and has never been broken-despite over $1.2 trillion in value relying on it.

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1 Jan
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Double-Spending Attack Methods in Blockchain Networks

Posted by Steve Messa
01/ 1/2026
24 Comments

Double-spending attacks let criminals spend the same digital coin twice. Learn how race attacks, Finney attacks, and 51% attacks work-and how to protect yourself from them on Bitcoin and other blockchains.

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