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Microsoft is addressing a critical vulnerability in Windows BitLocker (CVE-2025-21210) that exposes the encryption mechanism to a randomization attack. This flaw allows attackers with physical access to manipulate ciphertext blocks, potentially writing sensitive data to disk in plaintext. There is another issue with TPM equipped devices which are showing warnings after Bitlocker is enabled.

This cluster details the latest research in cryptography, particularly focusing on post-quantum privacy and one-shot signatures using quantum methods. It discusses the creation of a Traceable Receipt-free Encryption (TREnc) scheme that resists quantum adversaries, addressing a critical limitation of existing mechanisms. Also it explains the use of quantum methods for unclonable private keys and the application of cryptography to protect personal data. The discussion also delves into the use of Verifiable Delay Functions (VDFs) to enhance blockchain technology. This cluster highlights recent breakthroughs in cryptographic protocols that aim to be resilient to quantum computing attacks.