How can you detect a risky transaction before a single confirmation?

[Aya]

I understand them because it's SOP. They have to validate the account before they approve the withdrawals.

This actually favors the investors. This is an implication of the security of our fund. At least through this process, we are assured that our fund won't be stolen by anyone pretending to be the owner.

[AbdulShiek]

The company is just doing its job to safeguard our accounts. Nothing goes out without validation.

I understand them because it's SOP. They have to validate the account before they approve the withdrawals.

[Mr. Cid]

Some sites prevent withdrawals until it is confirmed. They do not allow unconfirmed deposits to be taken without validation by the member.

The company is just doing its job to safeguard our accounts. Nothing goes out without validation.

[Alexthedefender04]

Looking at how people trying hard to abuse faucet and other, set maximum allowed instant deposit won't help too much.
If it's too low, genuine users don't bother use it. If it's too high, people could abuse it with automated script.

[PALM]

The only place I've seen such behavior was when the "wallet" was a service owned by a partner company of the receiver.
But in theory if one knows that certain addresses belong to certain services (custodian wallets or maybe exchanges too), he can whitelist them and credit unconfirmed transactions, because those don't double spend transactions, the risk is much lower. Just... how to obtain such a list of addresses?

[AbdulShiek]

Some sites prevent withdrawals until it is confirmed. They do not allow unconfirmed deposits to be taken without validation by the member.

[sashavich04]

Don't accept instant payments on your payment gateway and always wait for confirmations. 1 confirmation is probably enough in most transactions to see if its able to be reversed or considered to be risky. I would advise that you always wait for that 6 confirmation to come in before processing the order however you could accept the transaction and get processing ready. Bitcoin is not meant to be used for instant payments and instead its to be used for high security payments and that's why its always best to wait for confirmations.

[darexgeorgieviya04]

I'm creating a payment gateway and I'm curious how some sites pre-credit users on certain gambling sites before 1 confirmation. I've heard to look for low fees but is that it?