{"id":54551,"date":"2023-11-16T16:39:12","date_gmt":"2023-11-16T16:39:12","guid":{"rendered":"http:\/\/2c1e60d8-c0d6-4b7c-8794-f1e1cb0eb336"},"modified":"2023-11-16T16:39:12","modified_gmt":"2023-11-16T16:39:12","slug":"singtel-refutes-reports-that-its-system-upgrade-caused-optus-outage","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/singtel-refutes-reports-that-its-system-upgrade-caused-optus-outage\/","title":{"rendered":"Singtel refutes reports that its system upgrade caused Optus outage"},"content":{"rendered":"<figure class=\"c-shortcodeImage u-clearfix c-shortcodeImage-large\">\n<div class=\"c-shortcodeImage_imageContainer\">\n<div class=\"c-shortcodeImage_image\"><picture class=\"c-cmsImage c-cmsImage_loaded\"><source media=\"(max-width: 767px)\" srcset=\"https:\/\/www.zdnet.com\/a\/img\/resize\/3332b74d0db9209aba90e271363c51b2ac54d9e8\/2023\/11\/16\/f59f74e8-4550-4d8b-9438-6834d452daac\/servercolors-gettyimages-1402896104.jpg?auto=webp&amp;width=768\" alt=\"servercolors-gettyimages-1402896104\"><source media=\"(max-width: 1023px)\" srcset=\"https:\/\/www.zdnet.com\/a\/img\/resize\/0e4a8842765e1f69374f47da6c16792fb2dda66b\/2023\/11\/16\/f59f74e8-4550-4d8b-9438-6834d452daac\/servercolors-gettyimages-1402896104.jpg?auto=webp&amp;width=1024\" alt=\"servercolors-gettyimages-1402896104\"><source media=\"(max-width: 1440px)\" srcset=\"https:\/\/www.zdnet.com\/a\/img\/resize\/ffbc98f7dac685044628da63d6911434112356ce\/2023\/11\/16\/f59f74e8-4550-4d8b-9438-6834d452daac\/servercolors-gettyimages-1402896104.jpg?auto=webp&amp;width=1280\" alt=\"servercolors-gettyimages-1402896104\"><img decoding=\"async\" src=\"https:\/\/www.zdnet.com\/a\/img\/resize\/ffbc98f7dac685044628da63d6911434112356ce\/2023\/11\/16\/f59f74e8-4550-4d8b-9438-6834d452daac\/servercolors-gettyimages-1402896104.jpg?auto=webp&amp;width=1280\" alt=\"servercolors-gettyimages-1402896104\" width=\"1280\" height=\"720.1039411000432\" fetchpriority=\"low\"><\/picture><\/div>\n<p> <!----><\/div>\n<p> <!----><figcaption> <span class=\"c-shortcodeImage_credit g-outer-spacing-top-xsmall u-block\">Kwarkot\/Getty Images<\/span><\/figcaption><\/figure>\n<p>Singtel has refuted reports that a system upgrade carried out on its backbone network caused the massive outage suffered by its Australian subsidiary Optus.&nbsp;<\/p>\n<p>The &#8220;routine software upgrade&#8221; on a router was carried out at <a href=\"https:\/\/www.singtel.com\/content\/dam\/singtel\/singtel-assets-four\/pdf\/Singtel_20STiX.pdf\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" class=\"c-regularLink\">Singtel Internet Exchange<\/a> (STiX), which is one of Optus&#8217; international networks that facilitates peering connectivity with global internet networks.&nbsp;<\/p>\n<p><strong>Also: <a href=\"https:\/\/www.zdnet.com\/article\/best-cloud-storage\/\" rel=\"follow\">The top cloud storage services you can buy<\/a><\/strong><\/p>\n<p>This upgrade was planned and prior notice was sent out to affected customers, including Optus and other telecom companies,&nbsp;<a href=\"https:\/\/www.singtel.com\/content\/dam\/singtel\/investorRelations\/stockExchange\/2023\/Ann-SGX-optus.pdf\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" class=\"c-regularLink\">Singtel said in a statement<\/a>&nbsp;Thursday. During the upgrade, data traffic was directed to other points of presence on the STiX network and routed back to customers&#8217; networks.&nbsp;<\/p>\n<p>The software upgrade was completed within 20 minutes and customers&#8217; routers that were connected to it, including Optus&#8217;, were up and running, Singtel said.&nbsp;<\/p>\n<p><!----><\/p>\n<p>&#8220;We are aware <a href=\"https:\/\/www.zdnet.com\/article\/australia-to-investigate-optus-outage-that-impacted-millions\/\" rel=\"follow\">Optus experienced a network outage<\/a> after the upgrade, when a significant increase in addresses being propagated through their network triggered preset failsafes. However, the upgrade was not the root cause,&#8221; said the Singapore telco, of which Optus is a wholly-owned subsidiary.&nbsp;<\/p>\n<p>The&nbsp;<a href=\"https:\/\/www.zdnet.com\/article\/australia-to-investigate-optus-outage-that-impacted-millions\/\" rel=\"follow\">November 8 service disruption<\/a> left many without access to telephone and broadband services, affecting more than 10 million Optus customers, including 400,000 businesses. The hours-long outage also brought down payment systems, grounded train services in the state of Victoria, and left emergency call services inaccessible. Services resumed progressively more than six hours after the outage occurred and were fully restored 12 hours later.&nbsp;<\/p>\n<p><strong>Also: <a href=\"https:\/\/www.zdnet.com\/home-and-office\/networking\/what-on-earth-happened-to-cloudflare-last-week\/\" rel=\"follow\">What on earth happened to Cloudflare last week?<\/a><\/strong><\/p>\n<p>The STiX software upgrade was rolled out at 1 am local time, or 4 am in Sydney, on November 8.&nbsp;<\/p>\n<p>In an <a href=\"https:\/\/www.optus.com.au\/notices\/outage-response\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" class=\"c-regularLink\">FAQ explaining the outage<\/a>, Optus said its network had &#8220;received changes to routing information from an international peering network following a software upgrade&#8221; at 4:05 am on November 8.&nbsp;<\/p>\n<p>&#8220;These routing information changes propagated through multiple layers in our network and exceeded preset safety levels on key routers. This resulted in those routers disconnecting from the Optus IP Core network to protect themselves,&#8221; the FAQ said.&nbsp;<\/p>\n<p>Restoring the affected systems involved significant effort from its team, some of whom had to be sent across a number of sites to physically reconnect or reboot routers, according to Optus.&nbsp;<\/p>\n<p>The operator said it has made changes to its network to prevent the issue from recurring.&nbsp;<\/p>\n<p><strong>Also: <a href=\"https:\/\/www.zdnet.com\/home-and-office\/networking\/10-ways-to-speed-up-your-internet-connection-today\/\" rel=\"follow\">10 ways to speed up your internet connection today<\/a><\/strong><\/p>\n<p>Optus CEO Kelly Bayer Rosmarin is scheduled to attend a Senate inquiry on Friday to address the incident.&nbsp;<\/p>\n<p>Australia&#8217;s minister for communications Michelle Rowland last week said the government was conducting a post-incident telecommunications review into the network outage. Industry regulator Australian Communications and Media Authority also has&nbsp;<a href=\"https:\/\/www.acma.gov.au\/updated-acma-statement-optus-outage\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" class=\"c-regularLink\">initiated its own assessment<\/a>&nbsp;to determine if Optus had remained in compliance with rules mandating that emergency calls are successfully carried from mobile carriers to the &#8220;<a href=\"https:\/\/www.acma.gov.au\/acma-statement-optus-outage\" target=\"_blank\" rel=\"noopener noreferrer nofollow\" class=\"c-regularLink\">emergency call person<\/a>.&#8221;<\/p>\n<p>READ MORE <a href=\"https:\/\/www.zdnet.com\/article\/singtel-refutes-reports-that-its-system-upgrade-caused-optus-outage\/#ftag=RSSbaffb68\">HERE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>While confirming a software upgrade was carried out on its Singtel Internet Exchange backbone network, the carrier denies this was the root cause of the massive outage suffered by its Australian subsidiary Optus.<br \/>\nREAD MORE HERE&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[62],"tags":[],"class_list":["post-54551","post","type-post","status-publish","format-standard","hentry","category-zdnet-security"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Singtel refutes reports that its system upgrade caused Optus outage 2026 | ThreatsHub Cybersecurity News<\/title>\n<meta name=\"description\" content=\"ThreatsHub Cybersecurity News | ThreatsHub.org | Cloud Security &amp; Cyber Threats Analysis Hub. 100% Free OSINT Threat Intelligent and Cybersecurity News.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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