I always appreciate Steve Gibson's deep dives on stuff.

Security Now (Audio): SN 973: Not So Fast - GPS Vulnerabilites, VPN Flaw

Episode webpage: https://twit.tv/shows/security-now/episodes/973

Media file: https://pdst.fm/e/pscrb.fm/rss/p/cdn.twit.tv/libsyn/sn_973/c18d5d13-9b48-44ea-9b24-b368f6c8d6c7/R1_sn0973.mp3