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Latest coverage for Exchange Server

Stay updated on Exchange Server security with the latest news, updates, and expert insights into protecting your email communications effectively.

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Background for this topic.

Exchange Server is a Microsoft server platform for organizational email, calendars, contacts, and mailbox storage. It may run within an organization or as part of a hybrid environment, and commonly exposes web, mail-transfer, and administration interfaces. Because it stores business communications and can mediate access to accounts, it is a high-value system for security teams.

Security concerns include exploitation of vulnerabilities in internet-facing services, theft or misuse of privileged accounts, and unauthorized mailbox access through weak authentication or compromised credentials. Protection requires prompt, tested security updates; minimizing and monitoring external exposure; strong authentication for administrators and remote access; and careful separation of administrative privileges. Logs from web access, authentication, mailbox activity, and mail flow support detection and investigation. Organizations should also maintain tested backups and recovery procedures, while applying retention, access-control, and privacy requirements to stored messages and attachments.

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Krebs on Security 3 years, 11 months ago

Microsoft Patch Tuesday, August 2022 Edition

Microsoft today released updates to fix a record 141 security vulnerabilities in its Windows operating systems and related software. Once again, Microsoft is patching a zero-day vulnerability in the Microsoft Support Diagnostics Tool (MSDT), a service built into Windows. Redmond also addressed multiple flaws in Exchange Server — including one that was disclosed publicly prior to today — and it is urging organizations that use Exchange for email to update as soon as possible and to enable additional protections.