Read here: https://therecord.media/nsa-warns-of-threat-actors-compromise-entire-5g-networks-via-cloud-systems/
Link to ‘Security Guidance For 5G Cloud Infrastructures – Part I: Prevent and Detect Lateral Movement’ here: https://media.defense.gov/2021/Oct/28/2002881720/-1/-1/0/SECURITY_GUIDANCE_FOR_5G_CLOUD_INFRASTRUCTURES_PART_I_20211028.PDF