Overview
- A maintenance restart at Telstra’s Exhibition Street site caused a Network Time Protocol server to reset its date to 2006, which then spread incorrect time across the network and caused authentication certificates to fail.
- Telstra says the fault likely resulted from an intentional but undocumented design change to an SSU 2000 timing device and a missed software update that would have prevented the reset.
- Company leaders including CEO Vicki Brady and CFO Michael Ackland told a Senate committee the firm accepts accountability, apologised for leaving some Triple Zero callers unable to connect, and pledged an external expert review and to hand its findings to senators.
- Telstra is taking compensation claims from affected residential and small business customers on a case‑by‑case basis and has carried out welfare checks for those whose emergency calls failed.
- The outage has elevated scrutiny of Telstra’s maintenance controls and supplier warnings from Microchip Technology about a known ‘rollover’ risk, and analysts warn the main commercial danger is if reliability failures become a pattern.