Optus attackers publish and then delete data
This September 2022 Security Magazine article reports that an alleged attacker seeking a ransom from Optus published 10,000 records online before retracting the threat. Casey Ellis, founder and CTO of Bugcrowd, calls the breach incredibly impactful, noting that more than 10 million records are involved in a country of 24 million.
Source description, as published
An alleged attacker, seeking a ransom payment from Optus in exchange for millions of customer records, published 10,000 records online before retracting the threat and deleting all demands.