How Did the Optus Data Breach Happen? | UpGuard
ID: 2be88d53-5881-5a1a-a16f-e0a72f3a273f
STIX ID: report--2be88d53-5881-5a1a-a16f-e0a72f3a273f
Feed Name: UpGuard Blog
Threat Score
The report explains the Optus September 2022 data breach: an unauthenticated, publicly exposed API that served highly sensitive customer records (driver's license numbers, phone numbers, dates of birth, home addresses) was accessible for roughly three months; predictable, incrementing customer identifiers allowed attackers to enumerate and automate exfiltration, resulting in approximately 9.8 million customers being exposed.
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