Right! Any double spent attempt have one winner tx and losing tx or few losing txs
So they can trick lets say bitbay that don't wait for confirmation to double sped - interesting.
Some online chatter regarding the issue revolved around the idea that the attack is political; trying to influence developers and stakeholders to come to a solution to the so-called malleability issue (which Segwit is intended to solve).
For me all know that "malleability issue" but BU
shit this like nothing happened everything is ok you can makes attacks and what now ?
For those BU supporters waiting 30min for confirmations is not big deal.
I think that Bitcoin have to fix security holes that shout this is your foud you sould be wait for 30 min confirmations if you have luck because not you can wait up to few hours
2 transactions try to spend same coins and as result create different output coins
This is double spent
A transaction malleation attack does not change the outputs in any way whatsoever. There are no "different output coins". The receivers still get the Bitcoin, regardless or whether the original or the malleated transaction confirms. Transaction malleation is not a double spend attack. Nor is it an attack on the Bitcoin network but rather it is an attack on poorly written wallets and services.
so how "malleation attack" fucked up Mt Gox ? they were complaing about that if i good remember that they lost BTC in that process.
Bitclub is not BU supporter, they vote for SegWit. Maybe he want to say that Segwit help us to fix this problem? But this is not true.
Segwit will fix this problem only for witness outputs. All old UTXO set will be still vulnerable for malleability attack. How long will that take to spend all old UTXO??
Segwit in softfork mode will not solve these problems completely. Before to laugh at BU supporters, better understand in detail in the issue.