---
title: "Consensus Algorithms: How Computers Agree and Stay Safe Together"
url: https://daily.dev/posts/consensus-algorithms-how-computers-agree-and-stay-safe-together-l9tutunar
source_url: https://hackernoon.com/consensus-algorithms-how-computers-agree-and-stay-safe-together?source=rss
type: article
source: "Hacker Noon"
published: 2023-07-31T16:35:07.189Z
updated: 2023-08-12T02:21:10.658Z
tags: ["algorithms", "blockchain", "crypto", "decentralization", "decentralized", "ethereum", "proof-of-stake", "security"]
reading_time: 1
upvotes: 2
comments: 0
language: en
---

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# Consensus Algorithms: How Computers Agree and Stay Safe Together

**[Hacker Noon](https://daily.dev/sources/hackernoon)** · 1 min read · 2 upvotes · 0 comments

## Summary

Consensus algorithms are essential in decentralized networks, ensuring that computers agree on shared data and valid transactions without a central authority. In simple terms, it's like friends agreeing on changes to a shared document. Attacks like Nothing-at-Stake, Long-Range, Nothing-to-stake, and 51% can compromise network security.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://hackernoon.com/consensus-algorithms-how-computers-agree-and-stay-safe-together?source=rss>

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---

Tags: [#algorithms](https://daily.dev/tags/algorithms), [#blockchain](https://daily.dev/tags/blockchain), [#crypto](https://daily.dev/tags/crypto), [#decentralization](https://daily.dev/tags/decentralization), [#decentralized](https://daily.dev/tags/decentralized), [#ethereum](https://daily.dev/tags/ethereum), [#proof-of-stake](https://daily.dev/tags/proof-of-stake), [#security](https://daily.dev/tags/security)

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