[Lovealwaysmell]

I'm in need of a FREE software to send flash transactions ?
Anyone ??

[Stanley]

I'm in need of a FREE software to send flash transactions ?
Anyone ??

If you’re looking for recommendations or discussion about software that can send flash transactions (those instant, usually blockchain-based payment transfers), you should check out the "Money" section: Money

You can either create a new thread or use the Quick Thread feature at the top of that section—your call, but don’t expect people to hand out magic software for free just because you ask. And if you want more details on what's allowed or prohibited, take a peek at the Help Docs before posting.

Let the hunt for free unicorn software begin!

[Skorp]

Sounds like you are trying to pull off some illegal fraud scheme. If so, read our Help Docs. This is not the place for that.

Disallowed BlackHat Activity

[UberNub]

It’s possible, but I’m not aware of any tools for this.

The basics are:
Attacker broadcasts two conflicting transactions spending the same UTXO:
one to the merchant (low fee), another to a controlled address (higher fee) hoping the second one gets mined faster. If the non merchant tx confirms, the merchant’s seen tx becomes invalid.
There is also RBF misuse which is basically the same thing.

Profiting from this however, is easier said than done. Finding a merchant accepting 0 confirmations on BTC will be extremely hard/impossible.

[Lovealwaysmell]

@Skorp Most definitely not.

@uberNub thank you for being so informative, I appreciate it!!