Topic: [ANN] ✅ GreenCoin.online 🌏 - Google Challenge ✅ - page 12. (Read 36033 times)

Corruption and environmental pollution are world-class problems. In the first case, we will be helped by the blockchain and the crypto currency, and in the second, environmentally friendly modes of transport and production. This project is very important not only for investors, but for the whole planet thank's for attention

I have a suggestion like what other exchange are doing. For example,
If a buyer wants to buy 100,000 GRN but I only have 50,000 GRN to sell for him/her then the sell order shall be filled and will proceed at his/her desired cost. And the remaining 50,000 GRN will remain as his sell order which can be filled by other traders, how about this?

I like the little news brought by the authors. These little news can bring a sense of security to the people because the market is really sluggish.

I can use the exchange now and its working fine right now. I hope that there are no more bugs regarding the exchange.
How long would be the disablement for withdrawals? The exchange needs to have more volume and get more traders. I believe that you'll be there soon.

I think Exchange will be moved to another engine. The last one not safe and has bugs, that not committed intime.

I'll bring more information later. Be in touch

Current status:
https://greencoin.online/ Exchange started.
Trading: Enabled
Deposits: Enabled
Withdraw: Disabled

On Wednesday the 14th of November 2018 we were alerted to some questionable trades on the Doge-BTC Market, A user had placed a buy order for just over 11btc worth of Dogecoin at 100 sats price which is way above the current price, Said user then went on and bought mass amounts of x42 off the books pumping the price.
Upon checking the bitcoin wallet we noticed it was empty and we instantly locked down the users account and suspended trading and withdraws so we could investigate.
There was no breach to any of the wallet servers nor to the actual website server itself and there was no injections on any open ports.
We have now learned after speaking with security experts in the field there seems to be a vulnerability in the OpenSource exchange script we were using (OpenTrade) that allows a user to inject a false balance which is what has happened here.

Checking through the logs we can see the hacker credited themselves with 25 BTC in to their account on our database end, then began placing these large orders hoping people would sell into his high profit buys, we can also she he began by emptying the bitcoin wallet, then moved on to doge and x42, all other coins remain un-touched and safe. The hacker made many small withdraws over several minutes at which point we stopped them mid hack and managed to recover some funds before they withdrew them. We were alerted by other users to huge sells over at start-ex on x42 coin so we instantly reached out to them who worked with us to lock out the hackers account and null their balances, unfortunately though they had already withdrawn the BTC they gained from the selling of x42, Also due to the speed and help of start-ex we managed to recover some users stolen x42 that the hacker hadn't managed to sell off in time and we would like to thank Start-Ex for working with us as a community to limit the effect the hacker has caused.

After investigating all of the logs and balances here is what the hacker has taken:

864878 doge

2.785 BTC

61924 x42

21435 of that x42 was recovered with the help of Start-ex.

We also managed to recover:
249784 Dogecoin
9627.29907143 x42
before they could withdraw them from the exchange.

I know the hacker will have used fake details but here is the information we have on them:

Username: kondratlipski
Email: [email protected]

Off exchange BTC address coins were withdrawn to:
https://www.blockchain.com/btc/address/1B1dSfEABWvs9rb2ZYvuU3SkBKh5sELyTu

Off exchange Dogecoin address coins were withdrawn to: https://dogechain.info/address/DDJWcffLV6x88Uk1eMhqArwrc45hoJ6SVg
As we said above the other coins listed and other balances remained un-touched.

Due to the vulnerability in the OpenTrade platform we have decided not to re-open the exchange for trading and we have disabled automatic withdraws to ensure no one can manipulate and steal any more balances.
We have removed all of the hackers trades from the exchange and credited back balances of the coins you held and we are inviting users of AltMarkets to request a refund of their balances via ticket process.
We will shortly be re-enabling the ability to login to the exchange so you can confirm your balances held on the exchange and request the return of the balances which will be answered in a strict order of receipt (oldest tickets answered first) if you open multiple tickets you are pushing yourself to the back of the line.

Please open a ticket with the following information:

Altmarkets Username:
email address used on the exchange:
screenshot of all balances for each coin held or copy paste them one line at a time.
And a withdraw address for each coin you hold.

If you fail to submit the tickets in this format you will delay your refund.

Refunds will be processed from Thursday the 15th of November 2018 to Thursday the 22nd of November 2018 or sooner if all coins have been returned

If you fail to get your refund request in by then we wont be able to refund you so act fast.

you can submit tickets for refund here:

https://altmarkets.freshdesk.com/support/home

Login Here to get your screenshots:https://altmarkets.cc/login

Hi! I'm trying to access the exchange but its not working. I guess there's a problem on your end. Please update us regarding the said problem, this is the error.
I don't have problems with my internet connection so I'm sure that its on your part. I hope it will be fixed immediately.

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