To learn more about enabling the Protected Mode, visit this support page. The update also includes other improvements, such as a streamlined Fill & Sign experience and a simplified redaction tool. Open Acrobat, go to the Edit menu, select Preferences, and from the Categories section, select Security and click the checkbox that says Enable Protected Mode at Startup (Preview). (it's about 3-4 lines down from the top) 3. Open Windows dir:\Users\username\AppData\Local\Adobe\AAMUpdater\1.0\AdobeUpdaterPrefs.dat using Notepad. However, Protected Mode is turned off by default, so if you’re really concerned about security, you’ll need to take a few steps after updating Acrobat to the latest version. This doesn't work for the Adobe CS5, so here is a simple way to deactivate it if you have CS5: 1. This is because a critical process in Acrobat runs as root instead of being sandboxed.Īdobe notes that its latest patch adds a Protected Mode that sandboxes the app and “covers all the features and workflows in Acrobat.”Īdobe says its new Protected Mode is a change to Acrobat’s core architecture and should address the app’s previous security concerns. Download free Adobe Acrobat Reader software for your Windows, Mac OS and Android devices to view, print, and comment on PDF documents. Every macOS user who uses Adobe Acrobat DC needs to apply the latest patch rolled out today by Adobe (version 20.009.20063) as it fixes three critical vulnerabilities, one of which allows local users to exploit Adobe Acrobat DC to gain root access to a macOS computer without being detected (via Gizmodo).Īccording to Tencent Security researcher Yuebin Sun, even with macOS’s built-in System Integrity Protection enabled, it’s possible to use Adobe Acrobat’s security flaw to gain system-level access to a user’s entire machine.
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