Microsoft: No sign of cyberattack behind Outlook outage

Microsoft announced Thursday it found no evidence of malicious activity or a cyberattack behind the ongoing outage affecting its Outlook email service, a senior executive said Friday on X. The disruption has impacted services worldwide. Executive Vice President Charles Lamanna confirmed no signs of malicious activity, as the outage affected Outlook, Teams, and AI assistant Copilot since around 1600 GMT. Downdetector reported outages across 74 countries, hitting government agencies in Australia, Japan, and the US, plus companies like OpenAI and Anthropic. This marks the second Microsoft 365 outage this year, raising concerns about reliability among business customers. Microsoft said earlier that recovery attempts had not achieved expected results, and it continues reviewing data traffic flows and infrastructure while confirming no malicious cause.