March 2021 News & Updates

Executive Summary

  • A number of Windows Users, after installing the latest security updates, found that they were unable to print. In some cases, the symptom was simply that blank pages were printed and in some cases the computers would blue screen (crash) or freeze (requiring a power cycle). Additional information is available here.
  • Four zero day vulnerabilities were published and publicly exploited in Microsoft Exchange servers including Exchange Server 2013, 2016 and 2019. The vulnerabilities were used extensively to target and attack US targets including healthcare, government and more. Additional information is available here.
  • Microsoft’s Azure Platform (Azure AD, AAD) suffered a pretty significant outage on 15 March starting at apparently 19:15 UTC and finally ending at approximately 09:37 UTC on the following day. Impacted users were unablet o access Azure resources including (but not limited to) Teams, Office, XBox Live and the Azure Portal. Additional information is available here.
  • We are excited to announce that we are making excellent progress rolling out our enhanced patch management system and the excitement this month (updates that killed printers, Exchange zero days and more), we were able to really put the system to the test.


MicrosoftMicrosoft released updates to address 82 vulnerabilities this month including 10 that are considered critical, meaning that an attacker could exploit the vulnerability remotely with no user interaction required. March was also plagued with two publicly disclosed zero day vulnerabilities (including vulnerabilities that were and are being actively exploited in Exchange Server) and a security updated classified as critical that broke printing (failures ranging from just printing blank pages to crashing the computer) for users of Kyocera, Ricoh, Zebra, Dymo printers and more.

Microsoft releases regular updates the second Tuesday of each month, often referred to as ‘Patch Tuesday’. These updates are categorized as Low, Moderate, Important or Critical. Details on the categories are available here. The updates can include any supported Microsoft product from Windows to Office to Internet Explorer and server products like Exchange and SQL Server. If you have one or more of these products installed, especially if the update is listed as Important or Critcial, it’s important that the updates are installed.

Additional details on this months Microsoft updates are available from Microsoft, Brian Krebs, SANS and ZDNet.


Adobe patched a number of vulnerabilities this month, including one cross-platform (Windows and Mac) critical vulnerability in PhotoShop.

Like Microsoft, Adobe now releases updates to their products on the second Tuesday of each month. Adobe will also release ‘out of band’ updates if necessary to address critical vulnerabilities in their products. Adobe products include Adobe Reader (for viewing PDF files), Adobe Flash Player (often used to watch videos, for interactive content like games, etc.), Adobe Shockwave and the Adobe Creative Suite (Photoshop, Illustrator, Acrobat, Lightroom, etc.).

Additional details are available from Adobe Here including links to download the update(s) and instructions for installation.

Are you a small to medium sized business looking to leverage technology and enable your business and workforce to work smarter and more efficiently?  Do you already have computers, servers, firewalls, VPNs or other technology that you’re not taking full advantage of?  Are you looking for an IT Service Provider who understands small to medium sized businesses needs and the challenges that we face that can work with you to grow your business rather than just sell you time?

Cyber Tech Cafe an  IT Service Company with a focus on helping small to medium business get the most out of their technology investment.  As a small business ourselves, we understand the challenges you face and have designed our service offerings to help you get the most out of your technology dollar.  We offer on-call, as needed support if you just need a quick fix or extra set of hands right now.  We also offer maintenance plans that we call “MyIT” that are designed to address the most common concerns (patch management, disaster recovery / backup, log review, etc.) that are based on the number of workstations and servers that you have and have no term contract.  We believe that, if you find value in what we’re doing, you’ll find a way to keep us around without contract saying that you have to.

If you have questions about the MyIT plans or have an IT need that you need addressed right now, let us know.  We look forward to the opportunity to earn your business.