Has anyone else been the recipient of unexpected subcent transactions? I've received some very small (<0.000001) transactions in the last few days. They weren't from myself and I wasn't expecting them. Browsing the block chain, I see other address receiving such transactions as well. I find this very odd, as they are paying more in tx fee than the transaction itself. Is this some sort of probing attack, or is it just a misbehaving client? I hope nothing nefarious is happening. Does the client handle receiving transactions for yourself differently than other transactions? Is there any info leak here? I could see someone trying to probe clients with transactions to get info on which client owns what and then go into attack mode when a suitable target is found.
Here are a few examples of some blocks I noticed with these small transactions. The destination addresses seem to be used, so I don't think these are the change address. There are many more than these.
has an output for 0.0000001
has an output for 0.00000001
has an output for 0.00000005
has 3 outputs for 0.00000001
has 2 outputs for 0.00000001
If anyone knows what's happening here, I'd be interested in the explanation.