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Which companies just had a verified incident, who lends to them and who owns them. Every claim carries its evidence level and its source. How we decide what is confirmed

Global Financial Service Disruptions

Optus network outage (Australian payments and banks)

payment network · AU · Oceania · Singtel Optus Pty Ltd

Technical failureStatus: resolvedTier 1Severity 4 of 5Evidence confidence: highAnalyst-verified

Optus's nationwide outage on 8 November 2023 lasted about 12 to 13 hours and cut EFTPOS terminals and banking access for millions of Australians. Australian Payments Plus said core eftpos, BPAY and NPP processing was not affected.

First disruption
Nov 7 17:05 UTC
First public signal
unknown
Acknowledged
Nov 8
Restored
Nov 8 05:35 UTC
Duration
12.5 hours
DFX first recorded
Nov 5 14:58 UTC

What was restricted

card authonline bankingmobile appScope: country wide

Many businesses unable to take EFTPOS payments; customers unable to access accounts or make and receive payments for much of the day; CBA advised merchants to change terminal settings.

Cause, kept in separate layers

What the institution said
Automated shutdown after a BGP routing event (Optus attributed to Singtel STiX upgrade, which Singtel disputed)
DFX classification
Technical failure (cyber: ruled out)
Conflicting reports
Payment scheme said processing unaffected, while merchants reported EFTPOS down (connectivity, not scheme).

Dependencies

A dependency is a documented relationship. It is not evidence that the provider was compromised.

  • Provider: Optus (telco for EFTPOS terminals and customer connectivity), verified

Evidence