![]() Select Open System Preferences from the prompt. You'll be prompted to grant permission the first time you try to share your screen. If you're using a Mac, you'll need to grant permission to Teams to record your computer's screen before you can share. When you're done sharing, go to your meeting controls and select Stop sharing. You want to sketch with others and have your notes attached to the meeting. You need to share a presentation and want others to be able to move through it at their own pace.įor info on PowerPoint sharing, see Share PowerPoint slides in a Teams meeting. Present a PowerPoint file others can interact with. You only need to show one thing and want to keep the rest of your screen to yourself. Show just one window, and no notifications or other desktop activity. You need to seamlessly share multiple windows. Show your entire screen, including notifications and other desktop activity. Window sharing isn't available for Linux users. In Teams on the web, you'll see the following when you select Share content : We are auditing our development processes to help prevent this from happening again.Īll users should download the new security update immediately.If you're using Teams on the web, you'll be able to share your screen only if you're using Google Chrome or the latest version of Microsoft Edge. We greatly regret this error and we apologize to all Mac users, both for releasing with this vulnerability and for the concern it has caused. This morning, as of 8 a.m., the update is available for download, and starting later today it will be automatically installed on all systems running the latest version (10.13.1) of macOS High Sierra. When our security engineers became aware of the issue Tuesday afternoon, we immediately began working on an update that closes the security hole. Security is a top priority for every Apple product, and regrettably we stumbled with this release of macOS. Apple also apologized for the vulnerability and said its development process is being audited to prevent something similar from happening in the future. In a statement provided to MacRumors, Apple said the company's engineers began working on a fix as soon as the problem was discovered. Apple says it will automatically push out the update to all users who have not installed it later in the day. The update can be downloaded on all machines running macOS 10.3.1 using the Software Update mechanism in the Mac App Store. Update 2: Apple released a security update to address the vulnerability on Wednesday morning. If a Root User is already enabled, to ensure a blank password is not set, please follow the instructions from the 'Change the root password' section." To enable the Root User and set a password, please follow the instructions here. In the meantime, setting a root password prevents unauthorized access to your Mac. "We are working on a software update to address this issue. Update: An Apple spokesperson told MacRumors that a fix is in the works: We have a full how to with a complete rundown on the steps available here. Until the issue is fixed, you can enable a root account with a password to prevent the bug from working. It's not clear how such a significant bug got past Apple, but it's likely this is something that the company will immediately address. It appears that this bug is present in the current version of macOS High Sierra, 10.13.1, and the macOS 10.13.2 beta that is in testing at the moment. This allows for admin-level access directly from the locked login screen, with the account able to see everything on the computer. At the login screen, click "Other," and then enter "root" again with no password. Click unlock, and it should allow you full access to add a new administrator account.Īt the login screen, you can also use the root trick to gain access to a Mac after the feature has been enabled in System Preferences. Move the mouse to the Password field and click there, but leave it blankĦ. To replicate, follow these steps from any kind of Mac account, admin or guest:ĥ. This works when attempting to access an administrator's account on an unlocked Mac, and it also provides access at the login screen of a locked Mac. The bug, discovered by developer Lemi Ergin, lets anyone log into an admin account using the username "root" with no password. There appears to be a serious bug in macOS High Sierra that enables the root superuser on a Mac with a blank password and no security check.
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