"It is used for criminal, illegal activities" is one of the most oft-mentioned reasons for users to reject Bitcoin or other cryptocurrencies. However, it seems that this argument is losing weight as we speak when it comes to Bitcoin. In the wake of much increased interest and awareness regarding the fledgling, currently leading cryptocurrency, which has seen institutions and states renew their interest and attention towards regulation or stricter control of the virtual currency, users that would use Bitcoin for nefarious purposes have started to migrate to other cryptocurrencies. You see, the reality of a distributed, transparent ledger is great for a system's transparency; however, transparency and easily identifiable - and traceable - wallets and transactions go against criminals' interests. Law enforcement agencies, such as Europol, have already issued warnings and established protocols towards the adoption of software tools to monitor people using bitcoin. As such, criminals are looking towards other less "transparent" cryptos to use as escape routes for their criminal ways.

The most viable alternative for criminals has apparently been Monero, the cryptocurrency that has also been in the world's mouth because it's usually the one being mined in web browsers, absent of users' consent. Monero has been developed with privacy as a main design criteria from the start, encrypting the recipient's address on its blockchain and generating fake addresses, obfuscating the real sender, but going one step further by also obfuscating the amount of the transaction. This means Monero is currently "one of the favorites, if not the favorite" for usage in ransomware attacks, said Matt Suiche, founder of Dubai-based security firm Comae Technologies, said in a phone interview to Bloomberg.

You've heard of the Petya ransomware by now. The surge, which hit around 64 countries by June 27th, infected an estimated 12,500 computers in Ukraine alone, hitting several critical infrastructures in the country (just goes to show how vulnerable our connected systems are, really.) The number one hit country was indeed Ukraine, but the wave expanded to the Russian Federation, Poland, and eventually hit the USA (the joys of globalization, uh?) But now, some interesting details on the purported ransomware attack have come to light, which shed some mystery over the entire endeavor. Could it be that Petya (which is actually being referred to as NotPetya/SortaPetya/Petna as well, for your reference, since it mostly masquerades as that well-known ransomware) wasn't really a ransomware attack?