Microsoft 365
Microsoft Sway abused in massive QR code phishing campaign
A massive QR code phishing campaign abused Microsoft Sway, a cloud-based tool for creating online presentations, to host landing pages to trick Microsoft 365 users into handing over their credentials. The attacks were spotted by Netskope Threat Labs in July 2024 after detecting a dramatic 2,000-fold increase in attacks exploiting Microsoft Sway to host phishing […]
Microsoft: Exchange Online mistakenly tags emails as malware
Microsoft is investigating an Exchange Online false positive issue causing emails containing images to be wrongly tagged as malicious and sent to quarantine. “Users’ email messages containing images may be incorrectly flagged as malware and quarantined,” Microsoft said in a service alert posted on the Microsoft 365 admin center two hours ago. “We’re reviewing service monitoring telemetry […]
Microsoft shares Outlook workaround for Gmail sign-in issues
Microsoft has shared a temporary fix for a known issue preventing Microsoft 365 customers from signing in or adding Gmail accounts using classic Outlook. When attempting to synchronize Gmail accounts with their Outlook profile or add a new Gmail account, affected users may encounter the following errors: “This browser or app may not be secure” […]
Microsoft discloses unpatched Office flaw that exposes NTLM hashes
Microsoft has disclosed a high-severity vulnerability affecting Office 2016 that could expose NTLM hashes to a remote attacker. Tracked as CVE-2024-38200, this security flaw is caused by an information disclosure weakness that enables unauthorized actors to access protected information. It impacts multiple 32-bit and 64-bit Office versions, including Office 2016, Office 2019, Office LTSC 2021, and […]
Microsoft 365 anti-phishing feature can be bypassed with CSS
Researchers have demonstrated a method to bypass an anti-phishing measure in Microsoft 365 (formerly Office 365), elevating the risk of users opening malicious emails. Specifically, the anti-phishing measure that can be hidden is the ‘First Contact Safety Tip,’ which warns email recipients on Outlook when they receive a message from an unfamiliar address. Certitude analysts who discovered […]
Microsoft says massive Azure outage was caused by DDoS attack
Microsoft confirmed today that a nine-hour outage on Tuesday, which took down and disrupted multiple Microsoft 365 and Azure services worldwide, was triggered by a distributed denial-of-service (DDoS) attack. Redmond says the outage impacted Microsoft Entra, some Microsoft 365 and Microsoft Purview services (including Intune, Power BI, and Power Platform), as well as Azure App […]