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Category — Telecom Security
China-Backed Hackers Leverage SIGTRAN, GSM Protocols to Infiltrate Telecom Networks

China-Backed Hackers Leverage SIGTRAN, GSM Protocols to Infiltrate Telecom Networks

Nov 20, 2024 Cyber Espionage / Telecom Security
A new China-linked cyber espionage group has been attributed as behind a series of targeted cyber attacks targeting telecommunications entities in South Asia and Africa since at least 2020 with the goal of enabling intelligence collection. Cybersecurity company CrowdStrike is tracking the adversary under the name Liminal Panda , describing it as possessing deep knowledge about telecommunications networks, the protocols that undergird telecommunications, and the various interconnections between providers. The threat actor's malware portfolio includes bespoke tools that facilitate clandestine access, command-and-control (C2), and data exfiltration. "Liminal Panda has used compromised telecom servers to initiate intrusions into further providers in other geographic regions," the company's Counter Adversary Operations team said in a Tuesday analysis. "The adversary conducts elements of their intrusion activity using protocols that support mobile telecommunicati...
GeoServer Vulnerability Targeted by Hackers to Deliver Backdoors and Botnet Malware

GeoServer Vulnerability Targeted by Hackers to Deliver Backdoors and Botnet Malware

Sep 06, 2024 Cryptocurrency / APT Attack
A recently disclosed security flaw in OSGeo GeoServer GeoTools has been exploited as part of multiple campaigns to deliver cryptocurrency miners, botnet malware such as Condi and JenX, and a known backdoor called SideWalk. The security vulnerability is a critical remote code execution bug (CVE-2024-36401, CVSS score: 9.8) that could allow malicious actors to take over susceptible instances. In mid-July, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) added it to its Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active exploitation. The Shadowserver Foundation said it detected exploitation attempts against its honeypot sensors starting July 9, 2024. According to Fortinet FortiGuard Labs, the flaw has been observed being used to deliver GOREVERSE, a reverse proxy server designed to establish a connection with a command-and-control (C2) server for post-exploitation activity. These attacks are said to target IT service providers in In...
The Future of Network Security: Automated Internal and External Pentesting

The Future of Network Security: Automated Internal and External Pentesting

Dec 10, 2024Vulnerability / Perimeter Security
In today's rapidly evolving threat landscape, safeguarding your organization against cyberattacks is more critical than ever. Traditional penetration testing (pentesting), while effective, often falls short due to its high costs, resource requirements, and infrequent implementation. Automated internal and external network pentesting is a game-changing solution, empowering organizations to stay ahead of attackers with cost-effective, frequent, and thorough security assessments. Strengthen Your Defenses: The Role of Internal and External Pentests  Effective cybersecurity requires addressing threats from both inside and outside your organization. Automated solutions streamline this process, enabling IT teams to implement a holistic and proactive defense strategy. Internal Pentesting: Securing the Core Internal pentesting simulates an attacker operating within your network, exposing vulnerabilities such as insider threats, compromised credentials, or breaches through physical or ...
AT&T Confirms Data Breach Affecting Nearly All Wireless Customers

AT&T Confirms Data Breach Affecting Nearly All Wireless Customers

Jul 13, 2024 Data Breach / Network Security
American telecom service provider AT&T has confirmed that threat actors managed to access data belonging to "nearly all" of its wireless customers as well as customers of mobile virtual network operators (MVNOs) using AT&T's wireless network. "Threat actors unlawfully accessed an AT&T workspace on a third-party cloud platform and, between April 14 and April 25, 2024, exfiltrated files containing AT&T records of customer call and text interactions that occurred between approximately May 1 and October 31, 2022, as well as on January 2, 2023," it said . This comprises telephone numbers with which an AT&T or MVNO wireless number interacted – including telephone numbers of AT&T landline customers and customers of other carriers, counts of those interactions, and aggregate call duration for a day or month. A subset of these records also contained one or more cell site identification numbers , potentially allowing the threat actors to triang...
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Major Cyber Attack Paralyzes Kyivstar - Ukraine's Largest Telecom Operator

Major Cyber Attack Paralyzes Kyivstar - Ukraine's Largest Telecom Operator

Dec 13, 2023 Cyber Attack / Geopolitics
Ukraine's biggest telecom operator Kyivstar has  become  the victim of a " powerful hacker attack ," disrupting customer access to mobile and internet services. "The cyberattack on Ukraine's #Kyivstar telecoms operator has impacted all regions of the country with high impact to the capital, metrics show, with knock-on impacts reported to air raid alert network and banking sector as work continues to restore connectivity," NetBlocks  said  in a series of posts on X (formerly Twitter). Kyivstar, which is owned by Dutch-domiciled multinational telecommunication services company VEON,  serves  nearly 25 million mobile subscribers and more than 1 million home internet customers. The company said the attack was "a result of" the war with Russia and that it has notified law enforcement and special state services. While Kyivstar is working to restore the services, the internet watchdog noted that the telco is largely offline. That said, Kyivstar has yet ...
Why Telecoms Struggle with SaaS Security

Why Telecoms Struggle with SaaS Security

May 02, 2023 SaaS Security
The telecom industry has always been a tantalizing target for cybercriminals. The combination of interconnected networks, customer data, and sensitive information allows cybercriminals to inflict maximum damage through minimal effort. It's the breaches in telecom companies that tend to have a seismic impact and far-reaching implications — in addition to reputational damage, which can be difficult to measure, telecoms are often at the receiving end of government fines for their cybersecurity and privacy failures. There are few industries in the world that collect as much sensitive data as telecom companies. In recent years, telecom companies have accelerated their digital transformation, shedding legacy systems and reducing costs. These changes, coupled with the need for stronger collaboration with third-party vendors, have led them to SaaS applications to handle their CRM. Today, telecoms are using SaaS apps for billing, HR, call management, field operations management, tracking ca...
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