Eclipse attacks on blockchains

[bluebeagle]

A story about eclipse attacks on blockchains:

https://hackernoon.com/https-hackernoon-com-eclipse-attack-on-ethereum-a6f61e06e1a3

"Malicious nodes block the victim node’s view of the real blockchain with their imposter blockchain. Hence the name of one of blockchain’s major security threats — the Eclipse Attack."

[bittick]

that's vulnerability already exist from a long time ago and there was a similar attack like eclipse that called sybil attack. I thought that ethereum developers aware of that.
But that looks interesting for me right now to know deep about that.