Quote from: 50BTC.com on January 21, 2014, 11:58:52 AM

Dear users!

We would like to inform you about the situation with our billing system.

As we mentioned before, the pool underwent several attacks. We have experienced DDOS attacks from August till October and attacks from miners who have been cheating us using vulnerability in difficulty checking algorithm; on 18 of October we went through attack with penetration and corruption of billing system. Due to these attacks billing data and part of the funds were lost.

After the crash the system was completely redesigned and launched with new database engine. We created new pool from scratch, all components of the system were recreated and now it is highly secure and stable.

In the new system we recreated most of the user accounts and workers. However, the old billing history is unavailable. As a result of the attack user balances were spoilt and unreal values were shown.

At the moment we are solving billing issues one by one. This process is quite complicated. The number of requests for payback of unreal balances is dramatically high which makes the process even longer. We are doing our best to recover available funds and resolve all the issues. However, it takes much time.

Users who were registered in the system before the launch of the new system (18.12.13) will get special conditions for mining on our pool.

Thank you for staying with us,
Marko Babić, PR manager
50BTC team.

This is an amazing step forward in the Correct Direction.

Do you have plans on contacting all of your clients, or just the ones that complain the most?

Also you claim to of recreated the miners we had but I had something around the number of 15 miners , currently I only see 3 miners in my account? Can you explain what data was taken, and can you explain the vuln that was exploited to cheat the Payout system, so that we might help protect all of the Pools.