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Microsoft Introduces Exchange Online External Recipient Rate Limits
Microsoft limits bulk emails in Exchange Online to 2,000 external recipients daily starting January 2025 to fight spam.
CISA Cybersecurity Board Criticizes Microsoft for Preventable Exchange Online Breach
A US government report blames lax security at Microsoft for a Chinese cyberattack that breached US officials' email.
BSI Raises Alarm Over Unpatched Microsoft Exchange Servers in Germany
Over 17,000 Microsoft Exchange servers in Germany are unpatched and vulnerable, raising cybersecurity concerns.
Microsoft Exchange Online Faces Email Delivery Issues to Yahoo and AOL
Microsoft struggling to send emails to Yahoo/AOL due to stricter spam filters. Workarounds exist, but highlight the complexity of email delivery
Massive Vulnerability in Microsoft Exchange Threatens Tens of Thousands of Servers
Major Microsoft Exchange flaw impacts almost 100K servers, allowing attackers to bypass security and potentially steal data.
Microsoft Details Exchange Online Breach Techniques Used by Russian State-Sponsored Hackers
Microsoft and HPE breached by Russian hackers (Midnight Blizzard/APT29). Hackers targeted executive email accounts
U.S. Securities and Exchange Commission Hit by SIM-Swapping Scheme
SEC account hacked via SIM-swap, attackers exploited phone number, not internal systems. Hackers spread misinformation after gaining control.
Microsoft Exchange Accounts at Risk: Exploitation of Outlook Vulnerability
Russian group Fancybear hacked Microsoft Exchange accounts in US, Europe, and Middle East using a patched Windows Outlook flaw (CVE-2023-23397)
End-of-Life Microsoft Exchange Servers Pose Significant Cybersecurity Threat
20,000 Microsoft Exchange servers are vulnerable to cyberattacks due to outdated software. Experts recommend upgrading to supported versions
Microsoft Exchange Server 2019 to Receive Last Cumulative Updates in 2024
Microsoft will release two more cumulative updates for Exchange Server 2019 in 2024, even though the product is no longer in mainstream support.
Updating Microsoft Exchange Server: A Preventive Measure against RCE Attacks
In the latest Patch Tuesday, Microsoft released security patch (CVE-2023-36434) that fully resolves the CVE-2023-21709 flaw.
Why Ad Exchange Platforms Are the Future of Digital Advertising
This article was contributed by John Anderson who works as a writer at Smart-hub.io.
You might wonder, "Why should ad exchange platforms matter to me...
Microsoft Investigates Server Busy Errors in Exchange Online
Microsoft links delays to a "Server busy" error ('451 4.7.500') and ties it to infrastructural challenges.
Microsoft Ends Remote PowerShell Protocol for Exchange Online in October
Microsofts recommends that their users switch from RPS for Exchange Online to the Exchange Online PowerShell version 3 module.
Microsoft Announces Enhanced Security Protocols for Exchange Online
The upcoming changes for Microsoft Exchange Online will add DANE for SMTP and DNSSEC, making emails more secure, especially against TLS downgrade attacks.
Microsoft Announces Retirement of Exchange Web Services in 2026
Microsoft is phasing out EWS for the Graph API to enhance security and efficiency for developers and users.
Microsoft Updates Exchange Online SMTP Relay Requirements to Improve Security
Microsoft is updating its Exchange Online SMTP relay requirements on November 1 to improve security for business customers.
Microsoft Now “Throttling and Blocking” Emails from Vulnerable Exchange Servers
Microsoft says it will throttle and then block emails from vulnerable Microsoft Exchange Servers if owners do not patch them.
Microsoft Delays Remote PowerShell Deprecation in Exchange Online until October
Microsoft says Remote PowerShell support in Exchange Online will now end in June with extensions available until September.
Microsoft Remote PowerShell Will Not Be Available for New Exchange Online Tenancies Starting next...
Microsoft says that new subscribers of Exchange Online will no longer get Remote PowerShell starting from April 1.