Shopify, a leading global e-commerce platform used by millions of online stores, experienced a significant outage on Cyber Monday, one of the busiest online shopping days of the year. The outage, which began around 9:08 a.m. ET / 2:08 p.m. GMT, affected stores worldwide, with nearly 3,700 reports from users in the US and about 1,300 in the UK. The primary issues involved login failures and disrupted checkout processes, severely impacting merchants during the holiday shopping season. Shopify confirmed on its status page and social media that it was aware of the problem and working to resolve it, although the cause has not yet been disclosed. The outage caused widespread frustration among merchants and shoppers, highlighting the critical impact of technical issues during peak sales periods. The disruption affected numerous countries and added to the challenges faced by online retailers during a crucial sales event.