However, Microsoft did not agree on the severity of the issue and said that it doesn't meet the criteria for patching. Vectra researchers discovered the problem in August 2022 and reported it to Microsoft. The researcher adds that by taking 'control of critical seats–like a company's Head of Engineering, CEO, or CFO-attackers can convince users to perform tasks damaging to the organization.' 'This attack does not require special permissions or advanced malware to get away with major internal damage,' Connor Peoples at cybersecurity company Vectra explains in a report this week. The newly discovered security issue impacts versions of the application for Windows, Linux, and Mac and refers to Microsoft Teams storing user authentication tokens in clear text without protecting access to them.Īn attacker with local access on a system where Microsoft Teams is installed could steal the tokens and use them to log into the victim's account. Microsoft Teams is a communication platform, included in the 365 product family, used by more than 270 million people for exchanging text messages, videoconferencing, and storing files. When downloading Microsoft Teams, you have the choice of installing it for Windows 10 or Windows 11.Security analysts have found a severe security vulnerability in the desktop app for Microsoft Teams that gives threat actors access to authentication tokens and accounts with multi-factor authentication (MFA) turned on. To check if your current Windows 10 PC is eligible for the free upgrade to Windows 11, go to to download the PC Health Check app.Directly download the Windows 11 Health Check -> How to install Microsoft Teams in Windows 11? 5, 2021 via a free upgrade only for eligible Windows 10 PCs and on new PCs. In this demo, you can see that Microsoft Teams is active in Windows 11. If you want to get started with Windows 11 yourself check out: How to download and install Windows 11 In this demo, you can see a full installation of Windows 11 with a corporate account. Windows 11 also gives you a more natural way to connect with friends and family at Teams. This way you can instantly connect via text, chat, voice or video with all your personal contacts, anywhere, regardless of the platform or device users are working on. With Windows 11, Microsoft introduces Chat in Teams integrated from the taskbar. Microsoft also wants to ensure that the device or platform users are working on is not a barrier.

Microsoft would like to make it easier to connect people no matter where they are. The past few months have led to a new digital era around how we connect with people.

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