Hacking Double-spending

[ghost]

I'm wondering how did you get around the problem with double spending?

If I rewrite your wallet source code and compile a unique version, can I spend my coins more than once?

https://www.reddit.com/r/Mimblewimble/comments/56heys/can_mimblewimble_prevent_double_spends/

[rsoltanzadeh]

Cut-through can be done on-chain as well. This is a 0-conf issue rather than a cut-through one.

[antiochp]

Agreed. I think the issue described in that reddit post is around 0-conf.
We handle this at the wallet level by requiring (by default, but configurable) a minimum of 10 confirmations (taking approx 10 minutes) before coins are treated as "confirmed" and spendable.

can I spend my coins more than once?

No. You can make two conflicting txs that both attempt to spend the coins. But only one will make it onto the chain with enough confirmations to be treated as "confirmed" by other wallets.