Since my last post, the Rayhunter project has made significant progress.
Section
Security
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Rayhunter by EFF is an open-source tool to detect cellular spying, aka IMSI catchers, aka Stingrays. This tool monitors the cellular network and detects anomalies. Specifically, it looks for IMSI requests, 2G downgrade, SIB types 6 and 7, and null cipher. It is originally written for the Orbic RC400L, which is hard to purchase in Europe. GitHub user m0veax has created a fork and documentation to bring Rayhunter to the TP-Link M7350, which is available in Europe.
Passkeys are a new authentication method that is gaining popularity. They are designed to be more secure and easier to use than traditional passwords. This scheme is developed by the FIDO Alliance, who also offer a database of certified passkey vendors. This database is called the FIDO Metadata Service (MDS).