https://www.bleepingcomputer.com/news/security/optus-hacker-apologizes-and-allegedly-deletes-all-stolen-data/

The hacker who claimed to have breached Optus and stolen the data of 11 million customers has withdrawn their extortion demands after facing increased attention by law enforcement. The threat actor also apologized to 10,200 people whose personal data was already leaked on a hacking forum.

Optus, Australia's second-largest mobile operator, first disclosed the security breach on September 22, 2022, saying that an attacker might have gained access to customers' personal information.