Telecommunications

Telecommunications
AT&T Data Breach 2021 Cyberattack Telecom US

The 2021 AT&T data breach now affects a new set of data

June 11, 2025

A known threat actor has reemerged with data from a…

Cellcom Cyberattack Service Outage Telecommunications US

The Cellcom cyberattack is the alleged cause of service outages

May 27, 2025

Cellcom, a mobile carrier based in Wisconsin, has confirmed that…

SK Telecom Data Breach South Korea Malware

The recent SK Telecom breach is a 3-year-long cybersecurity issue

May 23, 2025

The recent cybersecurity incident disclosed by SK Telecom last month…

O2 Telecommunications UK Call Metadata Vulnerability

O2 telecom patches call metadata bug that exposes user locations

May 22, 2025

O2 has addressed a vulnerability in implementing VoLTE and WiFi…

TeleMessage Hack Messaging Services US

TeleMessage probes alleged hack, suspends messaging services

May 7, 2025

TeleMessage, an Israeli firm providing an unofficial Signal message archiving…

USIM Data SK Telecom South Korea Malware Data Breach

USIM data at risk after malware hits SK Telecom systems

April 24, 2025

SK Telecom, South Korea’s largest mobile network operator, has warned…

HellCat Cybercriminals Jira Servers Ascom

HellCat hacks different orgs worldwide by exploiting Jira servers

March 24, 2025

A Swiss organisation dubbed Ascom disclosed that it suffered a…

NTT Telecommunications Japan Data Breach

NTT telco breach allegedly impacts thousands of corporate clients

March 11, 2025

The Japanese telecommunications services provider, NTT Communications Corporation (NTT), released…

Chinese Hackers US Telecommunications Cyberattacks Salt Typhoon

US telco targeted by Chinese hackers with custom malware

February 24, 2025

Chinese hackers from the state-sponsored group Salt Typhoon have been…

Cisco Devices Telecommunication Security Breach Hackers

Hackers exploit Cisco devices to breach telecom networks

February 17, 2025

The Chinese state-sponsored cyber espionage group known as Salt Typhoon…