Mobile Carrier
AT&T rolls out “Wireless Lock” feature to block SIM swap attacks
AT&T has launched a new security feature called “Wireless Lock” that protects customers from SIM swapping attacks by preventing changes to their account information and the porting of phone numbers while the feature is enabled. This new feature has been available for some customers for almost a year and has now been rolled out to […]
Mobile carrier Cellcom confirms cyberattack behind extended outages
Wisconsin wireless provider Cellcom has confirmed that a cyberattack is responsible for the widespread service outage and disruptions that began on the evening of May 14, 2025. The incident disrupted voice and SMS services for customers across Wisconsin and Upper Michigan, leaving subscribers unable to make phone calls or send text messages. Today, after days […]
Chinese hackers breach more US telecoms via unpatched Cisco routers
China’s Salt Typhoon hackers are still actively targeting telecoms worldwide and have breached more U.S. telecommunications providers via unpatched Cisco IOS XE network devices. Recorded Future’s Insikt Group threat research division states that the Chinese hacking group (tracked Salt Typhoon and RedMike) has exploited the CVE-2023-20198 privilege escalation and CVE-2023-20273 Web UI command injection vulnerabilities. These ongoing attacks have […]