While I don't understand exactly what you are trying to describe, it sounds like you might fundamentally misunderstand how bitcoin works, and/or how blockchain mixer works. BTW: last time I checked blockchain did say that for larger amounts of bitcoin you might have to wait awhile for the transaction, no? Also, maybe some of the inputs haven't yet confirmed themselves, meaning your coins aren't confirming. Or better yet- your C address is some sort of change address. It's hard to figure out from what you said is happening, but it sounds more like a misunderstanding of how bitcoin works then a problem with blockchain. Give it a couple days, the transaction if it doesn't confirm by then will fall out of the memory pool and you can start over.
But........if you don't have 2FA, and more importantly: A Yubikey, then all bets are off. There is some clever fucking maleware out there these days.
Custom Gentoo OS. There's no malware here...
Not a fundamental misunderstanding of how it works, but an observation of it not working the way it's supposed to, or at least Blockchain.info showing me stuff that makes no damn sense at all.
It's started to get confirmations. But the question still remains, why did a transaction occur which I never initiated, why was it sent to an address I never created, why was this address created, and why and how did I end up in possession of said address... Address C was not of my making. The transaction in which the balance of Address A was sent to Address C is something I did not do, hence the confusion and panic post. Why did this unrequested transaction to said made-up address take so many hours to get included in a block? Address B still doesn't show anything being sent to it, it's not even noted on the network as ever being used at all, even thought that is the only address I actually sent some coin to!
All of my coin is currently present and accounted for, but I'm not touching a damn thing until there's a rational explanation for WTF just happened!As soon as I posted this, the whole Address A to C sending thing was erased from Blockchain.info. Balance is proper, the C address still has the coin on it... Still no conclusion tot hat magic. But it's no longer displayed as being "sent" from A to C... Effing bizarre... I think this is just an internal balance send, or a change send... But Blockchain.info handles the display of it in such a screwed up way as to freak me out... Holy sh!t man... Ever been told you just lost $30,000 for no reason without having MtGox to blame? :-p I did not enjoy this.