Eclipse Attack
Isolating a node so it only sees an attacker's network view.
An eclipse attack surrounds a victim's node with attacker-controlled peers so everything it knows about the network comes from the attacker: a false chain tip, censored transactions, a distorted view.
Node software defends with diverse peer selection. For miners the related lesson is topology: a pool whose nodes peer widely and regionally is harder to feed a stale view of the chain.
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