This cryptocurrency has a lot of problems. It is not really decentralized. People lose a lot of money, when it was discovered, that their hash algorithm had flaws. They keep promising to return lost IOTAs, but no real progress yet, and I doubt it ever happen. Their wallet is just a crap, a perfect example of how not to write software. And taking into account the quality of their software, you'll never know, how many undiscovered flaws exist yet. Keep away from this crypto.