what is sweeper?

an automated script that moves funds out of a compromised wallet the moment they arrive.

once a seed phrase has leaked, any fee money sent to that wallet can be taken within seconds.

related words

address poisoning sending tiny or zero-value transfers from a look-alike address so the victim later copies the wrong address from their history.
pig butchering a long-con investment scam built on a fake friendship or romance.
drainer a ready-made scam toolkit that empties a wallet once it is connected.

part of the topic scams: free articles, more words and the guide.

checked 2026-10-20. education, not advice. found a mistake? see corrections.