Topic: Cheaters (double spenders) and what the gambling sites are doing against them - page 4. (Read 3059 times)
April 14, 2016, 03:34:56 AM
this is strange i have not seen any place that accepts bitcoin with 0 confirmation and even if they do it is so rare and they only accept it with 0 confirmation if the transaction size is really small.
April 14, 2016, 03:30:14 AM
Wow. Seems like cheaters are getting really smart these days with these scams. I guess the website needs to wait for at least 1 confirmation then.
April 14, 2016, 01:12:36 AM
I don't think 1 confirmations will be a big problem... After all, i think most bitcoin users are used to wait for one confirmation when they use their coins in other places.
April 14, 2016, 01:07:59 AM
interesting, but so far all the sites that i have played at are accepting 1 confirmation minimum, never seen 0 confirmation yet.
you can do a couple of things:
- accept 0 confirmation for small investments to lower the risk and lower the loss in case of fraud. and ask for 1 and more for bigger investments.
- also you can also check the fees that are included in the transaction or in other words check the transaction's priority to make sure it is high and going to be confirmed soon.
you can do a couple of things:
- accept 0 confirmation for small investments to lower the risk and lower the loss in case of fraud. and ask for 1 and more for bigger investments.
- also you can also check the fees that are included in the transaction or in other words check the transaction's priority to make sure it is high and going to be confirmed soon.
April 14, 2016, 12:41:49 AM
Never heard of anyone getting away doing this before as I am sure the casino sites have anti-fraud contingency plans in place so this doesn't happen when you put in a deposit on their site. If not, then their security department needs to be replaced with capable staff to code the proper script for the confirmations when they are coming in.
April 13, 2016, 09:30:22 PM
You could do what luckyb.it does and wait for it to confirm with a low fee, or have instant play with a fee of at least 0.0002BTC. Should stop most double spenders, as it needs to be a large tx size for it to not confirm for a while with that kind of fee. Most players won't really notice a difference with paying 4 cents extra for the fee if they can play instantly, but it protects you a lot more. It also shouldn't affect the people that like small fees, since they can choose to wait for it to confirm.
Correct me if I'm wrong, but aren't they able to double spend regardless of the fee amount simply by putting a higher fee for the same transaction before the confirmation hits?
April 11, 2016, 06:30:36 PM
You could do what luckyb.it does and wait for it to confirm with a low fee, or have instant play with a fee of at least 0.0002BTC. Should stop most double spenders, as it needs to be a large tx size for it to not confirm for a while with that kind of fee. Most players won't really notice a difference with paying 4 cents extra for the fee if they can play instantly, but it protects you a lot more. It also shouldn't affect the people that like small fees, since they can choose to wait for it to confirm.
April 11, 2016, 06:08:36 PM
It recently came to our attention that many people (including people on this forum) are attempting to cheat on gambling websites (especially those that have a 0 confirmation deposit policy)
Here is how it works:
- Cheater finds a gambling website that lets you deposit with 0 confirmations
- Cheater sends BTC with a low fee, which takes anywhere between a few minutes to over 1 hour for it to receive the first confirmation
- Cheater plays on the website:
~ IF he is winning before the first confirmation hits, he "allows" for the transaction to go through (by not double spending) and then withdraws the winnings once the transaction is confirmed.
~ IF he is losing before there is the first confirmation hits, he double spends the transaction with a higher fee to another wallet of his.
This effectively gives the cheater a window of a few minutes to play and decide if he wishes to allow the transaction to go through or not.
When we had our 0 confirmation policy, this happened to us (www.BitcoinBlackjack.com) many times.
And now that we implemented a 1 confirmation policy it seems that the cheaters have taken their scam elsewhere.
We have personally spoken to many other gambling site owners on this forum, and many of them have also switched from a 0 confirmation to a 1 confirmation deposit policy in order to protect themselves.
Unfortunately, this does not benefit the experience for the players (since they have to wait for their deposits to confirm each time before playing). But it seems to be the only way to combat double spenders.
What do you guys think? Players? Website owners? We would love to hear from your experiences and see if there is a better solution.
Here is how it works:
- Cheater finds a gambling website that lets you deposit with 0 confirmations
- Cheater sends BTC with a low fee, which takes anywhere between a few minutes to over 1 hour for it to receive the first confirmation
- Cheater plays on the website:
~ IF he is winning before the first confirmation hits, he "allows" for the transaction to go through (by not double spending) and then withdraws the winnings once the transaction is confirmed.
~ IF he is losing before there is the first confirmation hits, he double spends the transaction with a higher fee to another wallet of his.
This effectively gives the cheater a window of a few minutes to play and decide if he wishes to allow the transaction to go through or not.
When we had our 0 confirmation policy, this happened to us (www.BitcoinBlackjack.com) many times.
And now that we implemented a 1 confirmation policy it seems that the cheaters have taken their scam elsewhere.
We have personally spoken to many other gambling site owners on this forum, and many of them have also switched from a 0 confirmation to a 1 confirmation deposit policy in order to protect themselves.
Unfortunately, this does not benefit the experience for the players (since they have to wait for their deposits to confirm each time before playing). But it seems to be the only way to combat double spenders.
What do you guys think? Players? Website owners? We would love to hear from your experiences and see if there is a better solution.
I see that this is the best option other than that , because like what you told this scammer will find lot more options for this cheating.
April 11, 2016, 05:12:33 PM
Have you tried to male only deposits with sufficient fee available for playing instantly?(check Bitsler)
I play BJ at Coin Royale and they allow 0 conf. deposits for my account.
I play BJ at Coin Royale and they allow 0 conf. deposits for my account.
April 11, 2016, 04:51:41 PM
It recently came to our attention that many people (including people on this forum) are attempting to cheat on gambling websites (especially those that have a 0 confirmation deposit policy)
Here is how it works:
- Cheater finds a gambling website that lets you deposit with 0 confirmations
- Cheater sends BTC with a low fee, which takes anywhere between a few minutes to over 1 hour for it to receive the first confirmation
- Cheater plays on the website:
~ IF he is winning before the first confirmation hits, he "allows" for the transaction to go through (by not double spending) and then withdraws the winnings once the transaction is confirmed.
~ IF he is losing before there is the first confirmation hits, he double spends the transaction with a higher fee to another wallet of his.
This effectively gives the cheater a window of a few minutes to play and decide if he wishes to allow the transaction to go through or not.
When we had our 0 confirmation policy, this happened to us (www.BitcoinBlackjack.com) many times.
And now that we implemented a 1 confirmation policy it seems that the cheaters have taken their scam elsewhere.
We have personally spoken to many other gambling site owners on this forum, and many of them have also switched from a 0 confirmation to a 1 confirmation deposit policy in order to protect themselves.
Unfortunately, this does not benefit the experience for the players (since they have to wait for their deposits to confirm each time before playing). But it seems to be the only way to combat double spenders.
What do you guys think? Players? Website owners? We would love to hear from your experiences and see if there is a better solution.
Here is how it works:
- Cheater finds a gambling website that lets you deposit with 0 confirmations
- Cheater sends BTC with a low fee, which takes anywhere between a few minutes to over 1 hour for it to receive the first confirmation
- Cheater plays on the website:
~ IF he is winning before the first confirmation hits, he "allows" for the transaction to go through (by not double spending) and then withdraws the winnings once the transaction is confirmed.
~ IF he is losing before there is the first confirmation hits, he double spends the transaction with a higher fee to another wallet of his.
This effectively gives the cheater a window of a few minutes to play and decide if he wishes to allow the transaction to go through or not.
When we had our 0 confirmation policy, this happened to us (www.BitcoinBlackjack.com) many times.
And now that we implemented a 1 confirmation policy it seems that the cheaters have taken their scam elsewhere.
We have personally spoken to many other gambling site owners on this forum, and many of them have also switched from a 0 confirmation to a 1 confirmation deposit policy in order to protect themselves.
Unfortunately, this does not benefit the experience for the players (since they have to wait for their deposits to confirm each time before playing). But it seems to be the only way to combat double spenders.
What do you guys think? Players? Website owners? We would love to hear from your experiences and see if there is a better solution.
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