Quote from: fairglu on March 02, 2015, 07:12:11 AM

Quote from: bittcoinn on February 24, 2015, 02:01:30 PM

4.protocol number ''zero'' showing on AC explorer
-possiblility that someone hacked this wallet?
5.as protocol ''2.0.1'' was professionally explained by Maestro1 , nobody ever explained what is ''zero'' protocol
- actually - after some discussion on this page, protocols '2.0.1' disapperared from explorer today. accident or something ?
same for ,zero, protocol - today is not shown

The protocol zero is what is reported by the wallet's getpeerinfo to the explorer.

I'm not 100% sure what it is, though it pops up occasionally on various wallets wallets.

My best guess so far is not that it is a sign of a hack, but either a connection problem by a peer, or a cloned wallet where the "magic bytes" were not changed to something unique, so the cloned wallets passes initial connection check which allows it to get listed in the peer list, then fails all the further checks.

Difficulty rise was caused by one of the largest stakeholders staking.

Thanks for the explanation