Phishing

Here are a few alternative titles: * Outlook Add-in Hijacked to Phish Thousands of Office Users * Old Outlook App Exploited in Massive Office Store Phishing Scam * Thousands of Microsoft Office Users Hit by Malicious Add-in Phishing Attack * Danger: Dormant Outlook Add-in Now a Phishing Threat for 4,000 Office Users * A ‘Dead’ Outlook Add-in Just Phished 4,000 Microsoft Office Users * Deceptive Outlook App Phishes 4,000 Office Store Customers * 4,000 Office Users Caught in Outlook Add-in Phishing Trap

By John E. Dunn

February 12, 2026

5 Min Read

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Cybercrime Email Clients Microsoft Outlook Phishing Productivity Software Security Social Engineering

Here are a few alternative titles: * Outlook Add-in Hijacked to Phish Thousands of Office Users * Old Outlook App Exploited in Massive Office Store Phishing Scam * Thousands of Microsoft Office Users Hit by Malicious Add-in Phishing Attack * Danger: Dormant Outlook Add-in Now a Phishing Threat for 4,000 Office Users * A ‘Dead’ Outlook Add-in Just Phished 4,000 Microsoft Office Users * Deceptive Outlook App Phishes 4,000 Office Store Customers * 4,000 Office Users Caught in Outlook Add-in Phishing Trap

February 12, 2026