Monero is a cryptocurrency that focuses on privacy and decentralization and is harder to trace than Bitcoin. It obscures the sender, recipient, and amount of each transaction, and so has become a popular cryptocurrency among organized crime groups and neo-Nazis. The FBI has said that it is concerned about the use of Monero by criminals. Jihadi fundraising groups such as Al-Sadaqah, which raises funds online for jihad groups in Syria, also use Monero. The image above shows how Al-Sadaqah shared its Monero wallet address on social media so those interested could anonymously "donate now to support the brothers on the front lines."
 Getmonero.org, accessed April 4, 2018.
 Coindesk.com, January 25, 2017.