Yes that what he's doing, but in very fast automated way, issuing parallel buys of YES and NO, also sells the same way. Tries to sell the same YES/NO shares in parallel. 

In a nutshell, basically we have a parallel BUY/SELL problem, and we need to fix it.

Interesting. Just from looking at his activity, I thought it might have been something simpler, like leveraging an imbalance in how the odds adjust on buys vs sells.

Undisciplined

grayruby

Very sophisticated attack vector, first he floods our db with tons of automated request, then tires to execute double sell. In some cases he succeeded in some cases he failed. We'll fix it no matter what. Once we get online, we'll also fix the odds of all the affected markets (La Liga, Premier League and BBL) as well.

mega_dreamer

oracle

🔧 Predyx is temporarily down for maintenance.

Yes noticed the imbalances in the big bash league market after this morning’s result. What is the attacker doing? 