Bitcoin was one of the hottest topics of the past year. It is decentralized virtual currency based on cryptographic and peer-to-peer protocols and supposed to be anonymous as well as cash money. Without a doubt, bitcoin is the currency of the new age. Despite increased media attention this area is still full of rumors and pitfalls. Important but non-obvious things will be explained in this talk as well as ideas about why a system based on cryptography doesn’t mean anonymity by default. It will be shown how to analyze pseudo-anonymous money flaws and how to hide traces. Also, an analysis of famous cases of a cybercrime world (Silk Road, SheepMarketplace) will be presented. So, these materials will be interesting for forensics and anti-forensics people as well as security and IT geeks.