BitLocker

Dell and HP computer users experienced reboot loops caused by problematic software and firmware updates. Dell's SupportAssist update and HP's BIOS update triggered system crashes and BitLocker recovery loops, respectively. Solutions include checking for manufacturer updates or disconnecting hardware.

Microsoft's June Windows update disrupted third-party applications using OLE automation to launch Office documents, causing failed launches and unclear errors. Affected apps include CCH Engagement, Dentrix, and Zotero, with Microsoft advising direct document opening as a workaround and denying responsibility for third-party compatibility.

Microsoft has resolved a bug affecting Windows Server 2025 devices that caused them to boot into BitLocker recovery after installing the April 2026 security update. The fix addresses a known issue reported in the update process.

Microsoft patched three zero-day vulnerabilities, two of which allow attackers to gain SYSTEM privileges on fully patched Windows systems, and a third that enables access to BitLocker-protected drives.

Microsoft has released a mitigation for the YellowKey BitLocker bypass vulnerability, which is tracked as CVE-2026-45585 and carries a CVSS score of 6.8. The vulnerability is a security feature bypass in Windows. Microsoft publicly disclosed the issue last week.

A security researcher known as Nightmare-Eclipse discovered a backdoor in Microsoft's BitLocker, which can be exploited using the YellowKey vulnerability to bypass full-volume encryption. The researcher claims that this backdoor was intentionally introduced by Microsoft. The vulnerability can be used to access encrypted data without passwords.

A security researcher claims Microsoft built a backdoor into Bitlocker, and has released an exploit to demonstrate the vulnerability. The researcher's findings suggest a potential security risk for users of the encryption software. Microsoft has not yet commented on the allegations.

A zero-day exploit named YellowKey can bypass default Windows 11 BitLocker protections, allowing access to an encrypted drive within seconds. The exploit was published by a researcher known as Nightmare-Eclipse and targets Microsoft's full-volume encryption protection. This exploit is significant as BitLocker is a mandatory protection for many organizations.

An anonymous cybersecurity researcher disclosed two zero-day vulnerabilities in Windows, including a BitLocker bypass and a privilege escalation impacting CTFMON. The vulnerabilities have been codenamed YellowKey and GreenPlasma. The researcher, who goes by the alias Chaotic Eclipse, previously disclosed three Microsoft Defender vulnerabilities.

A zero-day exploit known as YellowKey has been demonstrated, allowing access to Microsoft BitLocker protected drives using just a few files on a USB stick. This apparent backdoor raises concerns about the security of BitLocker. The exploit has been discussed on news platforms and forums.

A cybersecurity researcher has published proof-of-concept exploits for two unpatched Microsoft Windows vulnerabilities, named YellowKey and GreenPlasma, which are a BitLocker bypass and a privilege-escalation flaw. The vulnerabilities give access to protected drives. The exploits were released for Windows BitLocker.

Microsoft fixed a BitLocker recovery issue affecting Windows 11 systems after installing April 2026 security updates. The fix is currently only available for Windows 11 users. This resolution addresses a known problem that caused some systems to boot into recovery mode.

Microsoft confirmed that the April 2026 KB5082063 update causes BitLocker recovery prompts on some Windows Server 2025 devices. The issue affects servers requiring BitLocker key input during boot after applying the security update.