TheCoin is a mining pool with support for multiple cryptocurrencies. It allows users to mine several cryptocurrencies, at 0% rates, as the site works through donations from its miners. Recently, TheCoin's pool and trading bag are offline due to the fact that several coins allocated on the exchange have been stolen, which has also caused the entire mining process to be interrupted. In my view this is a security breach, showing that TheCoin despite having support for several currencies to mine is still by far an option to mine coins safely.