microsoft exchange

A Microsoft Security Update Guide entry for CVE-2025-33051 describes an information disclosure vulnerability affecting Microsoft Exchange Server, and the appearance of that CVE on the vendor’s advisory should put any on‑premises Exchange administrator on high alert. At the time of writing...

A new high-severity security flaw in Microsoft Exchange Server hybrid deployments has placed organizations worldwide on high alert, raising the specter of a “total domain compromise” that can cascade from on-premises environments to Microsoft’s cloud. The bug, designated CVE-2025-53786, has not...

A sweeping emergency order from the U.S. Cybersecurity and Infrastructure Security Agency (CISA) has intensified the cybersecurity spotlight on Microsoft Exchange, following the disclosure of a fresh and serious vulnerability. On August 7th, 2025, CISA issued Emergency Directive 25-02 in direct...

A newly disclosed security flaw in Microsoft Exchange hybrid deployments is triggering urgent action among IT administrators worldwide, as Microsoft warns of a critical vulnerability—CVE-2025-53786—that exposes hybrid environments to stealthy privilege escalation attacks. As organizations...

A critical security vulnerability, identified as CVE-2025-53786, has been discovered in hybrid deployments of Microsoft Exchange Server. This flaw allows attackers with local administrative access to escalate their privileges within connected cloud environments, posing significant risks to...

Cybersecurity in the corporate realm now sits at the top of IT agendas for organizations of all sizes, as email remains the most common vector for threats like phishing, ransomware, and sophisticated malware attachments. Microsoft Exchange Online Protection (EOP) has long held dominance due to...

An alarming new vulnerability in Microsoft Exchange Server hybrid environments has sent shockwaves through the enterprise security landscape, giving attackers with just on-premises admin access the ability to hijack cloud accounts with near-complete impunity. Unveiled at Black Hat 2025 and now...

A critical security update has emerged for organizations leveraging Microsoft Exchange Server in hybrid cloud environments, as CVE-2025-53786 exposes a significant elevation of privilege vulnerability. On April 18th, 2025, Microsoft not only published important security changes for hybrid...

Here is a summary of the main points from the article on The Register regarding China's accusation against US intelligence: Chinese Claims: China has accused US intelligence agencies of exploiting a Microsoft Exchange zero-day vulnerability to steal defense-related data and control more than 50...

GhostContainer, a newly identified and highly sophisticated backdoor malware, has recently come to light following in-depth research by Kaspersky’s Global Research and Analysis Team (GReAT). Discovered during a critical incident response operation in a government exchange infrastructure...

As Microsoft Exchange 2016 and 2019 reach their end-of-support milestone in October 2025, privacy-conscious organisations worldwide face a pivotal decision about the future of their email infrastructure. The retirement of these long-standing Microsoft staples isn’t simply a technical update—it's...

As Microsoft Exchange Server 2016 and 2019 approach their end-of-support dates on October 14, 2025, organizations must proactively plan to ensure their email systems remain secure, compliant, and functional. For privacy-conscious organizations, this transition presents both challenges and...

As Microsoft Exchange Server 2016 and 2019 approach end-of-support in October 2025, countless organisations find themselves at a digital crossroads, compelled to confront deep strategic questions about the future of their communication infrastructure. The clock is ticking for IT leaders: it’s no...

The release of Exchange Server Subscription Edition (SE) marks a pivotal moment for Microsoft’s enterprise email infrastructure, moving decisively into a new era characterized by a subscription-centric, cloud-aligned approach even for on-premises scenarios. Enterprises that have depended on...

For IT professionals and business leaders worldwide, the looming end-of-support deadline for Microsoft Exchange Server 2016, Exchange Server 2019, and Outlook 2016 is an event that demands urgent attention. Microsoft has firmly scheduled the end-of-support for these widely used messaging and...

Anyone relying on smooth, uninterrupted digital communication probably felt an unpleasant jolt between April 22 and April 24, when Microsoft's Exchange Online took it upon itself to flag perfectly legitimate Adobe emails as spam—because who doesn't enjoy a little surprise inbox purgatory before...

Microsoft just dropped its April 2025 Hotfix Updates for Exchange Server 2019 and 2016, and let’s be honest: if you’re an IT pro managing one of these beasts, you probably just felt a chill run down your spine. Yes, once again, Microsoft’s keeping us all on our toes—and by “on our toes,” I mean...

If your Exchange Server is sporting the digital equivalent of bell-bottoms and disco fever, it’s time for an upgrade. For some administrators, tackling a lagging Exchange environment ranks just above untangling a Slinky or flossing the office server rack—meaning somewhere between “absolutely...

Microsoft’s investigation into the global Exchange Admin Center (EAC) outage marks another challenging day for IT administrators tasked with managing Microsoft 365 environments. The current incident, designated as critical service issue EX1051697 in the Microsoft 365 Admin Center, has led to...

The past week has thrown a wrench into what is normally a finely tuned email machine, as Microsoft Exchange Online users around the globe experienced delays, failures, and bewildering error messages. The mishap—tracked under EX1027675 in the Microsoft 365 Admin Center—saw emails either bogged...