Tag Archives: Bitlocker

38C3: Bitlocker bypassed via vulnerabilities (Dec. 2024)

[German]A small addendum from the weekend – at the 38C3 congress of the Chaos Computer Club, Thomas Lambertz, a security expert, showed how Microsoft's Bitlocker encryption can be circumvented by "downgrading" a patched vulnerability. The way in which secret services … Continue reading

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Windows Bitlocker recovery key query bug fixed by August 2024 updates

[German]A small addendum to the August 2024 patchday regarding Bitlocker. With the July 2024 updates, there was the problem that systems remained in a query for the Bitlocker recovery key on the next restart. Good for those who had the … Continue reading

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Question: Where does Bitlocker store the recovery key in Windows?

[German]Bitlocker, the "unknown entity" I would like to paraphrase the blog post. It's about the question of where the Windows Bitlocker function actually stores the recovery key, which is needed from time to time. Before someone comes around with "in … Continue reading

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Windows 10/11: Microsoft has published a fix for OOBE Bitlocker Bug

[German]Microsoft does promote Bitlocker for encrypting drives under Windows. But there are always bugs that prevent encryption or allow third parties unauthorized access to encrypted drives. A Microsoft supporter has now revealed a case where Bitlocker is not enabled in … Continue reading

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Windows 10/11 Home Edition and the OEM Bitlocker pitfall

[German]Today a topic that might have put one or the other user in an unpleasant situation. A machine with Windows 10 Home Edition (or Windows 11 Home) suddenly requests a Bitlocker key after an update or other change. The user … Continue reading

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Windows 10: Update on WinRE patch (fix for Bitlocker bypass vulnerability CVE-2022-41099)

[German]One more addendum to the blog post Windows 10: Be aware of WinRE WinRE patch to fix Bitlocker bypass vulnerability CVE-2022-41099. To close the vulnerability (CVE-2022-41099), which allows bypassing Bitlocker encryption in Windows, the clients' Win RE environment (Windows 10) … Continue reading

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Hotfix for MBAM bitlocker recovery key issue in ConfigMgr 2013

[German]Quick note for administrators who use the MBAM agent to escrow BitLocker recovery keys. This may result in excessive policy generation in Configuration Manager version 2103. Microsoft has now provided a hotfix to address this issue.

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Be careful with BitLocker management in ConfigMgr

[German]Does anyone manage their Windows clients via Configuration Manager (ConfigMgr) and also use Bitlocker? There is a PowerShell script Invoke-MbamClientDeployment.ps1 to supposedly upload the keys. However, Microsoft writes that this PowerShell script is not supported for use with BitLocker Management … Continue reading

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Windows 10 1909: Intune bugfix in BitLocker Key Rotation

Microsoft has just released a fix for Intune. The fix fix fixes a bug in the BitLocker Key Rotation when managing Windows 10 version 1909 systems with Intune.

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Microsoft uses Bitlocker self-encrypting drives (SEDs)

[German]Microsoft doesn't trust self-encrypting drives (SEDs) no more and has begun to encrypt self-encrypting drives (SEDs) using Bitlocker in Windows 10.

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