{"id":55823,"date":"2024-04-11T23:32:00","date_gmt":"2024-04-11T23:32:00","guid":{"rendered":"http:\/\/6413ca29-5f35-4349-aacf-b57b212d8caa"},"modified":"2024-04-11T23:32:00","modified_gmt":"2024-04-11T23:32:00","slug":"att-blasts-email-to-70m-customers-causes-massive-traffic-spike-at-experian-heres-what-happened","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/att-blasts-email-to-70m-customers-causes-massive-traffic-spike-at-experian-heres-what-happened\/","title":{"rendered":"AT&amp;T blasts email to 70M customers, causes massive traffic spike at Experian. Here&#8217;s what happened"},"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\/94e564c52e079dbf983f3716194e6fdfabe672e1\/2024\/04\/11\/fcd1fa98-e548-4a44-8bbe-7ff255f0fbc6\/gettyimages-1688829465-1.jpg?auto=webp&amp;precrop=2000,1124,x0,y233&amp;width=768\" alt=\"An email sign in a bear trap.\"><source media=\"(max-width: 1023px)\" srcset=\"https:\/\/www.zdnet.com\/a\/img\/resize\/f1904e5aa650b5357f9f815a1a277301a6322471\/2024\/04\/11\/fcd1fa98-e548-4a44-8bbe-7ff255f0fbc6\/gettyimages-1688829465-1.jpg?auto=webp&amp;precrop=2000,1124,x0,y233&amp;width=1024\" alt=\"An email sign in a bear trap.\"><source media=\"(max-width: 1440px)\" srcset=\"https:\/\/www.zdnet.com\/a\/img\/resize\/1f18fd6551caeaef916ac41f3998c1a6c1f0d0e0\/2024\/04\/11\/fcd1fa98-e548-4a44-8bbe-7ff255f0fbc6\/gettyimages-1688829465-1.jpg?auto=webp&amp;precrop=2000,1124,x0,y233&amp;width=1280\" alt=\"An email sign in a bear trap.\"><img decoding=\"async\" src=\"https:\/\/www.zdnet.com\/a\/img\/resize\/1f18fd6551caeaef916ac41f3998c1a6c1f0d0e0\/2024\/04\/11\/fcd1fa98-e548-4a44-8bbe-7ff255f0fbc6\/gettyimages-1688829465-1.jpg?auto=webp&amp;precrop=2000,1124,x0,y233&amp;width=1280\" alt=\"An email sign in a bear trap.\" width=\"1280\" height=\"719.3600000000001\" fetchpriority=\"low\"><\/picture><\/div>\n<p> <!----><\/div><figcaption> <span class=\"c-shortcodeImage_credit g-outer-spacing-top-xsmall u-block\">rob dobi\/Getty Images<\/span><\/figcaption><\/figure>\n<p>If you have a lot of customers you need to contact regarding an important communication, such as a <a href=\"https:\/\/www.zdnet.com\/article\/were-you-caught-up-in-the-latest-data-breach-heres-how-to-tell\/\" rel=\"follow\">data breach<\/a>, it may be a good idea to stage those communications over several days rather than do it all at once.<\/p>\n<p>It appears, however, that one of the US&#8217;s largest wireless services carriers did just that &#8212; sent them all at once. On April 11, AT&amp;T emailed over 70M of its customers affected by a data leak disclosed by the company <a href=\"https:\/\/www.nytimes.com\/2024\/03\/30\/business\/att-passcodes-reset-data-breach.html\" target=\"_blank\" rel=\"noopener nofollow\" class=\"c-regularLink\">on March 30<\/a>.&nbsp;<\/p>\n<p><strong>Also: <a href=\"https:\/\/www.zdnet.com\/article\/at-t-resets-passcodes-for-7-6-million-customers-after-data-leak-what-experts-are-saying\/\" rel=\"follow\">AT&amp;T resets passcodes for 7.6 million customers after data leak. What experts are saying<\/a><\/strong><\/p>\n<p>In the email, sent at 3:23 p.m. ET, presumably sent to tens of millions of its customers, AT&amp;T says that a breach (which they disclosed in a previous email on March 30) compromised customer information. However, financial details and call history remained secure.&nbsp;<\/p>\n<p>In response, the company is resetting account passcodes and is offering a year of free credit monitoring and identity theft protection via Experian&#8217;s<a href=\"https:\/\/www.experian.com\/lpt\/identity-core-tmpl.html\" target=\"_blank\" rel=\"noopener nofollow\" class=\"c-regularLink\"> IdentityWorks<\/a> service. Experian is a large global credit reporting agency that provides data and analytical tools for credit and fraud monitoring, serving both individuals and businesses.<\/p>\n<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\"><!----> <img decoding=\"async\" src=\"https:\/\/www.zdnet.com\/article\/at-t-blasts-email-to-70m-customers-causes-massive-traffic-spike-at-experian-heres-what-happened\/\" alt=\"image-3.png\" width=\"1280\" height=\"743.8193018480492\" fetchpriority=\"low\"><\/picture><\/div>\n<\/p><\/div><figcaption> <span class=\"c-shortcodeImage_credit g-outer-spacing-top-xsmall u-block\">Jason Perlow\/ZDNET<\/span><\/figcaption><\/figure>\n<p>In the email, AT&amp;T provides a free subscription code and a link to the Experian website for enrollment. When we attempted to enroll, we noticed that the server was performing extremely slowly and also returned HTTP 500 errors, presumably due to high levels of traffic redirected from the AT&amp;T email to its customers. We also noticed that SMS credential logins stopped working via Experian&#8217;s mobile application, as well.<\/p>\n<figure class=\"c-shortcodeImage u-clearfix c-shortcodeImage-large c-shortcodeImage-hasCaption\">\n<div class=\"c-shortcodeImage_imageContainer\">\n<div class=\"c-shortcodeImage_image\"><picture class=\"c-cmsImage\"><!----> <img decoding=\"async\" src=\"https:\/\/www.zdnet.com\/article\/at-t-blasts-email-to-70m-customers-causes-massive-traffic-spike-at-experian-heres-what-happened\/\" alt=\"image-4.png\" width=\"1280\" height=\"628.2027649769585\" fetchpriority=\"low\"><\/picture><\/div>\n<\/p><\/div><figcaption>\n<div class=\"c-shortcodeImage_caption g-inner-spacing-right-small g-color-black\" readability=\"6\">\n<div class=\"c-ShortcodeContent\" readability=\"32\">\n<p>Error code from Experian&#8217;s web site.<\/p>\n<\/div>\n<\/div>\n<p> <span class=\"c-shortcodeImage_credit g-outer-spacing-top-xsmall u-block\">Jason Perlow\/ZDNET<\/span><\/figcaption><\/figure>\n<p>The subscription offer is genuine, and we were eventually able to log in after several minutes. Still, the performance was agonizingly slow, and it took us over half an hour to add our account information for monitoring, experiencing multiple HTTP timeouts along the way.<\/p>\n<figure class=\"c-shortcodeImage u-clearfix c-shortcodeImage-large c-shortcodeImage-hasCaption\">\n<div class=\"c-shortcodeImage_imageContainer\">\n<div class=\"c-shortcodeImage_image\"><picture class=\"c-cmsImage\"><!----> <img decoding=\"async\" src=\"https:\/\/www.zdnet.com\/article\/at-t-blasts-email-to-70m-customers-causes-massive-traffic-spike-at-experian-heres-what-happened\/\" alt=\"image-5.png\" width=\"1280\" height=\"867.157584683358\" fetchpriority=\"low\"><\/picture><\/div>\n<\/p><\/div><figcaption>\n<div class=\"c-shortcodeImage_caption g-inner-spacing-right-small g-color-black\" readability=\"6\">\n<div class=\"c-ShortcodeContent\" readability=\"32\">\n<p>Experian ID Works portal.<\/p>\n<\/div>\n<\/div>\n<p> <span class=\"c-shortcodeImage_credit g-outer-spacing-top-xsmall u-block\">Jason Perlow\/ZDNET<\/span><\/figcaption><\/figure>\n<p>The traffic spike at Experian was confirmed by the <a href=\"https:\/\/downdetector.com\/status\/experian\/\" target=\"_blank\" rel=\"noopener nofollow\" class=\"c-regularLink\">Downdetector<\/a> service, showing a massive increase in user reports around 5 p.m. ET.<\/p>\n<figure class=\"c-shortcodeImage u-clearfix c-shortcodeImage-large c-shortcodeImage-hasCaption\">\n<div class=\"c-shortcodeImage_imageContainer\">\n<div class=\"c-shortcodeImage_image\"><picture class=\"c-cmsImage\"><!----> <img decoding=\"async\" src=\"https:\/\/www.zdnet.com\/article\/at-t-blasts-email-to-70m-customers-causes-massive-traffic-spike-at-experian-heres-what-happened\/\" alt=\"experian-down-current-problems-and-outages-downdetector\" width=\"1280\" height=\"1387.0785070785068\" fetchpriority=\"low\"><\/picture><\/div>\n<\/p><\/div><figcaption>\n<div class=\"c-shortcodeImage_caption g-inner-spacing-right-small g-color-black\" readability=\"6\">\n<div class=\"c-ShortcodeContent\" readability=\"32\">\n<p>Experian user downtime reports at Downdetector<\/p>\n<\/div>\n<\/div>\n<p> <span class=\"c-shortcodeImage_credit g-outer-spacing-top-xsmall u-block\">Jason Perlow\/ZDNET<\/span><\/figcaption><\/figure>\n<p>On Twitter, at 4:54 p.m. ET Experian <a href=\"https:\/\/x.com\/Experian_US\/status\/1778527057200418915\" target=\"_blank\" rel=\"noopener nofollow\" class=\"c-regularLink\">noted on X<\/a> that its website had stabilized. However, as of 6 p.m. ET, the site remained non-responsive. Stay tuned to ZDNET for the latest updates on the situation.<\/p>\n<p>READ MORE <a href=\"https:\/\/www.zdnet.com\/article\/at-t-blasts-email-to-70m-customers-causes-massive-traffic-spike-at-experian-heres-what-happened\/#ftag=RSSbaffb68\">HERE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Customers won&#8217;t be able to enroll in Experian&#8217;s identity theft monitoring in the near term, and they have AT&#038;T to thank for that.<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-55823","post","type-post","status-publish","format-standard","hentry","category-zdnet-security"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AT&amp;T blasts email to 70M customers, causes massive traffic spike at Experian. 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