Case Study Crypto-ransomware attack has targeted Australian businesses. The ABC has been targeted by an extensive campaign of malicious emails which took ABC News 24 off air for half an hour on Tuesday , morning 7th October, 2014. The emails, which download crypto-ransomware, have also been sent to other public institutions. This attack initially targeted Australia Post customers, has also been observed to target a range of organisations, including Telstra and Energy Australia. Recovery of infected systems is virtually impossible without clean backups.
