I had not looked at Quark before. I thought it was just another scum coin. That looks very interesting indeed. A coin with a USP focused on security is definitely a niche.
Look again, Quark is a complete scam from the outset.
SecureCoin is based on Quark so it uses the same hashing changes but it has a sane economy behind it.
Nearly all Quark will be mined by the end of this month - that's right - nearly all of them.
SecureCoin uses the Bitcoin coin generation model hence it has some sustainability as the coins will be generated over many years instead of a few months.
I thought SecureCoin was dead. It disappeared from the CoinMarketCap.com because the blockchain explorer stopped working, and if you download the client it cannot download the blockchain (even if you add all the nodes available in the thread).