Telecom Security | Breaking Cybersecurity News | The Hacker News

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

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 t

As a vCISO, you are responsible for your client's cybersecurity strategy and risk governance. This incorporates multiple disciplines, from research to execution to reporting. Recently, we published a comprehensive playbook for vCISOs, "Your First 100 Days as a vCISO – 5 Steps to Success" , which covers all the phases entailed in launching a successful vCISO engagement, along with recommended actions to take, and step-by-step examples.  Following the success of the playbook and the requests that have come in from the MSP/MSSP community, we decided to drill down into specific parts of vCISO reporting and provide more color and examples. In this article, we focus on how to create compelling narratives within a report, which has a significant impact on the overall MSP/MSSP value proposition.  This article brings the highlights of a recent guided workshop we held, covering what makes a successful report and how it can be used to enhance engagement with your cyber security clients.

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