EFF to FCC: SS7 is Vulnerable, and Telecoms Must Acknowledge That
Briefly

SS7 enables international roaming and SMS communication but lacks security measures, making users vulnerable to cyber threats, prompting network operators to add firewalls for protection.
SS7, lacking security protocols, has been exploited for intercepting SMS messages; network operators need to secure and audit their systems, transitioning to more secure technologies.
Read at Electronic Frontier Foundation
[
|
]