We incorporate a new domain blacklist: COINBLOCKER-DOMAINS. CoinBlocker is a collection of lists that can help prevent illegal cryptomining in the browser or other applications. Most cryptocurrencies are generated through the process known as “mining.” Much like traditional mining operations, these procedures require the use of energy and resources to complete a process which yields a financial reward. In the case of cryptocurrency mining, the energy required is electricity and computing power. Lurking behind the legitimate cryptocurrency mining community is another group of individuals and organizations that try to mine for crypto using illicit methods.