There are several things that make Monero unique. One of the project’s biggest aims is achieving the greatest level of decentralization possible, meaning that a user doesn’t need to trust anyone else on the network.
Privacy is achieved through a few distinctive features. Whereas each Bitcoin in circulation has its own serial number, meaning that cryptocurrency usage can be monitored, XMR is completely fungible. By default, details about senders, recipients and the amount of crypto being transferred are obscured — and Monero advocates says this offers an upper hand over rival privacy coins such as Zcash, which are “selectively transparent.”
Obfuscation is achieved through the use of ring signatures. Here, past transaction outputs are picked from the blockchain and act as decoys, meaning that outside observers can’t tell who signed it. If Ian was sending 200 XMR to Susan, this amount could also be split into random chunks to add a further level of difficulty.
To ensure that transactions cannot be linked to one another, stealth addresses are created for every single transaction that are only used once.
All of these distinctive features have led to XMR being increasingly used for illicit transactions instead of Bitcoin — especially on darknet markets. Governments around the world, especially the U.S., have also offered hundreds of thousands of dollars to anyone who can crack Monero’s code.