A threat group has been emailing victims with threats to carry out distributed denial of service (DDoS) attacks unless they pay hefty ransom fees in the Monero (XMR) cryptocurrency. The threats received by Australian organizations over the past week are part of a global extortion campaign that began in October 2019. The Australian Signals Directorate’s Australian Cyber Security Centre has sent out a security threat advice today about this ongoing campaign. The ACSC said that based on current evidence, the attackers have not followed through on any of their threats.