Microsoft announces deprecation of 1024-bit RSA keys in Windows

Microsoft announced it will deprecate RSA keys under 2048 bits for TLS server authentication in Windows, aligning with industry standards to improve cryptographic strength. The change may disrupt older software and network devices (e.g., printers) still using 1024-bit keys; a formal announcement and grace period with logging are expected to help identify affected systems. Enterprise and test CA-issued TLS certificates are largely out of scope, but organizations are strongly urged to transition to 2048-bit or longer RSA keys promptly.