[mcintyre1994]

There are tumbler services, no idea how well they work or how many are compromised but in theory it seems like it could work.

[Phlarp]

I'm surprised we haven't seen more theft and fraud with the tumblers. I used one out of curiosity about two years ago and the experience was basically to fill out a super shady looking webform, send the coins to the address it gives you, and then pray like hell that they come back out the other end.

[DINKDINK]

The CoinJoin proposal[0] by Greg Maxwell provides transaction-history-tracing erasure capabilities. JoinMarket[1] is a market driven approach to incent CoinJoin mixing

[0]https://bitcointalk.org/index.php?topic=279249.0 [1]https://bitcointalk.org/index.php?topic=919116.0

[maxerickson]

It kind of ironic, but dark markets are in a great position to offer a coin re-tainting service.

It isn't quite the same thing as a tumbler, but they have busy addresses and lots of volume to obscure things with.

[Hermel]

They only work for small volumes.