Ericsson Key exchange without forward secrecy enables passive monitoring [RFC7258]. Massive pervasive monitoring attacks relying on key exchange without forward secrecy has been reported [I-D.ietf-emu-aka-pfs]. If key exchange without Diffe-Hellan is used, compromise of the long-term authenticatation key enables a passive attacker to compromise past and future sessions. All TLS 1.2 cipher suites without forward secrecy has been marked as NOT RECOMMENDED [RFC8447], and static RSA has been forbidden in TLS 1.3 [RFC8446]. psk_ke does not provide forward secrecy and is NOT RECOMMENDED. This document sets the IANA registration of psk_ke to NOT RECOMMENDED.