A cryptocurrency is a digital currency powered by cryptography. This tag is applicable only to Q&As about the cryptographic mechanisms used by a currencycryptocurrencies, not for questions about economy, usage, or acquisition of any particular currency.
See this meta for why questions on practicalities, IT security, programming, variants, theft, social engineering, economics, sociology, legals of cryptocurrency are unwelcome.
Please note that Stackexchange has dedicated websites for Bitcoin, Ehtereum, Monero, etc.
