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Microsoft to stop Exchange 2016 / 2019 security updates in October

📅 22 July 2026 at 10:44 UTC📰 Bleeping ComputerView original source ↗
Microsoft to stop Exchange 2016 / 2019 security updates in October

Microsoft has reminded customers that it will stop shipping security updates for Exchange 2016 and 2019 through the Extended Security Update (ESU) program in October. [...]

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

Microsoft will stop shipping security updates for Exchange 2016 and 2019 through the Extended Security Update (ESU) program in October, leaving customers vulnerable to exploitation by threat actors targeting these systems.

⚙️Technical Details
Affected Systems
Exchange Server 2016Exchange Server 2019
💥Impact Assessment
Severity: high
Who Is at Risk
IT admins and organizations using Exchange Server 2016 or 2019
🛡️Recommended Actions
1Upgrade to Exchange Server Subscription Edition (SE) as soon as possible
2Migrate to Exchange Online for standalone service or Office 365 subscription
3Directly upgrade to Exchange Server SE or install Exchange 2019 on servers running Exchange 2016 or 2013
📦Affected Products
Exchange Server 2016Exchange Server 2019

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