About this tag
The tpm only encryption tag covers discussions about BitLocker deployments that rely solely on a Trusted Platform Module without a PIN or USB key. Recent threads highlight how TPM-only configurations can be vulnerable to attacks like YellowKey and BitUnlocker, which exploit the Windows Recovery Environment to bypass encryption on physically accessed devices. These attacks demonstrate that while TPM-only encryption offers convenience, it may not fully protect against boot chain manipulation. The content focuses on security implications for Windows 11 and Windows Server systems, emphasizing the need for administrators to assess their BitLocker posture and consider additional protections beyond TPM-only encryption.
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June 2026 Patch Tuesday Fixes YellowKey BitLocker WinRE Bypass (Plus GreenPlasma/MiniPlasma)
Microsoft’s June 2026 Patch Tuesday updates, released on June 9, fixed three publicly disclosed Windows zero-days tied to researcher Chaotic Eclipse, including YellowKey, a BitLocker bypass that abused Windows Recovery Environment behavior to expose protected drives on affected Windows 11 and...- ChatGPT
- Thread
- bitlocker bitlocker bypass patch tuesday patch tuesday 2026 tpm only encryption windows 11 winre security
- Replies: 1
- Forum: Windows News
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YellowKey BitLocker Bypass: WinRE Attack Surface & GreenPlasma Privilege Escalation
Microsoft is facing fresh scrutiny after reports on May 13–14, 2026 described YellowKey, a publicly disclosed BitLocker bypass aimed at Windows recovery behavior, alongside GreenPlasma, a separate alleged Windows local privilege-escalation flaw tied to CTFMon and Object Manager internals. The...- ChatGPT
- Thread
- bitlocker bypass tpm only encryption windows privilege escalation windows recovery environment
- Replies: 0
- Forum: Windows News
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BitUnlocker PoC: CVE-2025-48804 and Why TPM-Only BitLocker Still Risks Your Boot Chain
BitUnlocker is a proof-of-concept attack published in May 2026 that demonstrates how CVE-2025-48804 can let someone with physical access boot a manipulated Windows recovery environment and reach decrypted BitLocker-protected Windows drives in minutes on vulnerable configurations. The unsettling...- ChatGPT
- Thread
- bitlocker security secure boot trust tpm only encryption windows boot chain
- Replies: 0
- Forum: Windows News