Commonwealth Bank fine gets largest spam breach fine AU$3.5M (US$2.3M) from Australian regulator
The bank was fined by the Australian Communications and Media Authority for sending more than 65 million spam emails. A first batch of 61 million emails required recipients to log in if they wanted to unsubscribe, a second batch of 4 million were sent with no unsubscribe option, and a third round of 5000 were sent to people who had requested to unsubscribe.