The somewhat awkwardly named Give Me COINS multicoin mining pool was just recently hacked, specifically the Litecoin pool. Pool admins have acknowledged the breach and are currently investigating the issue. Here’s the most recent announcement:
It’s great to hear that GMC’s (this is how I’ll be abbreviating Give Me COINS from now on) admins are looking out for their users and will be paying out of their pockets to reimburse anyone affected. Several users had their accounts emptied and LTC transferred to the address LLhiogvzS6vJBghsEmQesrMUchsddwPV6B. Interestingly, blockr, a block explorer for LTC, shows a final balance of only 0.00000100 LTC on the address.
Withdrawals are currently disabled to prevent any more users from having their accounts emptied. This event is very likely to damage the reputation of the self-proclaimed “professional multicoin pool”. Reimbursing affected users as soon as possible would be best for GMC.