One of the great blockchain security conundrums in the age of bots.

…at the modified chain is invalid, the modified chain is replaced with valid chain from other nodes. This makes Blockchain vulnerable to 51% attack. In simpler words, if more than 50% of the nodes on the network are malicious (or say have a modified chain), then the whole network can be compromised.

Beginner’s Guide to Blockchain — Explaining it to a 5 Year Old

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John Katsos

1 min readAug 22, 2018

One of the great blockchain security conundrums in the age of bots. Would connecting it to an authentication service of some kind solve the problem?

Blockchain

Blockchain Technology

Written by John Katsos

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Scholar. Educator. Writer. I help people learn to start and manage better, more sustainable businesses and be better humans. Opinions my own.

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