Topic: oh great, MTGox is under attack again right now - page 2. (Read 4116 times)

Mt. Gox needs to charge for limit orders that are revoked. They don't need to charge much, just enough to discourage junk orders.

Are you sure they're posted asks and not actual sales? Because I'm pretty sure only actual sales modify the price while asks don't affect it at all.  In fact, on the bottom it says "last price" as in the last price a completed trade just was.  Oh and to make the price go up, they were bids, not asks.  More asks would drive the price down because more BTC would be available.

I would easily write this off as an accidental bot loop but there is no simple mathematical basis for the buying pattern.  It is seriously picking one of those amounts randomly.  And then there's the circumstantial evidence that the price swung above and below that price point minutes before which means the bot implemented that trade and hit the trigger inside of a couple minutes.  Who sets up a buying rule involving thousands of dollars and then leaves?  And who would pick intervals that small?   All of those can be explained individually but none override the fact that no bot logic would be "this trigger happened so pull a random number off this list and put in an order for it."  I don't think any bots are even capable of generating random buy and sell values.  That's so unbelievably illogical and stupid in a financial system, it wouldn't be done.

Can you explain this?  I know what all of the words in your post mean, but I have no idea what you are trying to say.

Nothing more than a code exploit.

The stack algorithm didn't have set boundaries....


rather... the dumbasses who coded the program didn't think bots could do things that human beings couldn't do.

attack? do we really have to use such fear mongering words? It's probably some sort of bot glitch.

It is affected. Orders remain "pending"/"in queue" due to a long queue or because processing is stuck. I would call this beeing affected :-)

You are wrong.  The small trades are asks, not bids.  Do your research.  This is not an attack.  Just because mtgoxlive is slow does not mean mtgox is affected.

It's what happens when bots exploit their freedoms.



This is why bad people can't have good things.

I'm sure I'm not the only person who noticed this but right now, MTGox (as seen by MTGox Live) is getting pounded with an suspicious sequence of trade orders.  They're at about 5-10 per second nonstop and all are buy orders and are all of the size: 0.02, 0.09, 0.10, or 0.37 BTC.  They're all those same 4 values but are completely randomly sequenced though.

This has only driven the price up a couple cents US but it's been at least 1000 straight trades for easily 10 minutes and that's just how long I've been watching it for.  It's so many trades, I'm on an i5 quad core with 8 GB of RAM and a GTS450 and the javascript to draw them is causing this separate window to lag as I type.

Is someone's tradebot having a meltdown? Otherwise this is obviously a specific attack trying to crash the exchange with a high volume of low orders?  The same 4 values in a random pattern is textbook AI avoidance.  They probably have a guard that catches hundreds of the same order or same order sequence being placed in a row as a sort of DOS attack so they just made

As of right now, the MTGox Live graph line is actually frozen so their servers aren't doing so well.  This could be anything from an attack against MTGox Live viewers only to attempting to crash MTGox's trade servers or even something I haven't thought of yet.

Here's a screenshot of it as it's happening.  So imagine this but relentlessly for about 20 minutes now.