{"id":30855,"date":"2023-06-04T10:00:59","date_gmt":"2023-06-04T08:00:59","guid":{"rendered":"https:\/\/www.cloudmagazin.com\/2023\/06\/04\/telecom-cybersecurity-resilience-against-cyberattacks\/"},"modified":"2026-06-10T12:59:58","modified_gmt":"2026-06-10T10:59:58","slug":"telecom-cybersecurity-resilience-against-cyberattacks","status":"publish","type":"post","link":"https:\/\/www.cloudmagazin.com\/en\/2023\/06\/04\/telecom-cybersecurity-resilience-against-cyberattacks\/","title":{"rendered":"Telecom Cybersecurity: Resilience Against Cyberattacks – Interview with Frank von Seth, CEO of cyan AG"},"content":{"rendered":"

The cyberattack on T-Mobile’s US subsidiary and the theft of 37 million customer records has raised questions across the telecommunications industry. Frank von Seth, CEO of cyan AG<\/a>, explains where the greatest sources of danger lie, why companies still hesitate too often when it comes to expanding their protective measures and what they can do to best protect their infrastructure.<\/p>\n

In early 2023, T-Mobile’s US subsidiary was hacked: up to 37 million customer records – including phone numbers and account details – were stolen and offered on the darknet. How is something like this possible?<\/strong><\/p>\n

Since the causes of the attack could be traced back to a misconfigured API (Application Programming Interface), i.e. digital interfaces, it is possible to derive directly from this what telecom companies need to focus on today when it comes to cybersecurity.<\/p>\n

Cybercriminals have professionalised enormously in recent years and are well aware of entry points such as APIs. When misconfigured, they simplify illegal access to data by third parties. Such an interface also existed in this case involving T-Mobile’s US subsidiary. Because the attack made more data readable than anticipated, the impact was compounded further.<\/p>\n

One thing becomes clear: the concrete problem lies in today’s “open” structure of technology companies.  Ecosystems need to be created and kept modern. This, however, requires APIs that enable developers to share data. With billions of interactions per week, these interfaces become potential vulnerabilities – 37 million user records simply go unnoticed.<\/p>\n

What characterises these attacks? How exactly do hackers operate?<\/strong><\/p>\n

The quantity, quality and complexity of attacks are expected to continue rising throughout 2023, as attacks are increasingly being refined through state-sponsored support, among other factors. Cybercriminals rely heavily on the fact that business decision-makers are left without orientation, fearing data loss, business damage, operational disruptions or revenue losses.<\/p>\n

I would also use the term “hacker” very cautiously, because we are actually talking about cybercriminals. For them, this business is like baking bread for a baker, complete with the entire organisation behind it.  How and what exactly happened at T-Mobile was not disclosed – it could have been something a developer noticed by chance whilst programming on the API, or it could have been a targeted search.<\/p>\n

Furthermore, I would distinguish between two types of attacks: mass-market and individual, though the boundary cannot be precisely defined. The latter would correspond to the classic notion of hackers. For mass-market attacks, there are already ready-made tools available on the darknet that can be purchased as easily as a Netflix subscription. Anyone can become a criminal and distribute ransomware or carry out phishing.<\/p>\n

What classic mistakes do companies and consumers make in daily smartphone use that make cyberattacks easier for hackers?<\/strong><\/p>\n

In my view, no company should harbour the illusion that it is too small or too unknown to stay under the radar of hackers. Put differently: fundamentally, the question is not whether, but when digital resilience must provide protection against hackers. There is still far too little awareness here.<\/p>\n

IT security is still regarded as too impractical, as something that hinders business processes. In reality, the opposite is true: not only because solutions already exist that scale well.<\/p>\n

In too many cases, companies resist implementing comprehensive IT security systems for cost reasons. This, however, not only opens entry points for hackers – the economic damage becomes far greater once an IT attack has succeeded and companies have to deal with the consequences.<\/p>\n

How can systems be protected against this?<\/strong><\/p>\n

Largely independent of budget considerations, I see two strands that need to be addressed. On the one hand, companies must strengthen their employees’ know-how in order to keep the probability of human error as low as possible.<\/p>\n

On the other hand, dedicated organisations are needed that identify risks in a timely manner and prevent attacks. The greatest sources of danger in this context arise particularly through business partners, customers, suppliers and the like.<\/p>\n

Should an attack occur nonetheless, channels are needed that guarantee reporting, in order to be fully aware of the situation without losing face as a company.<\/p>\n

The IT skills shortage also significantly affects telecommunications companies. Can we therefore assume that network operators are unable to keep pace with their own security measures?<\/strong><\/p>\n

The fact remains that the skills shortage in certain market environments is delaying the development of digital resilience. 137,000 unfilled IT positions in Germany alone today speak a clear language. Moreover, qualified employees typically leave the company after about a year. In most cases, inexperienced staff move up and then work with highly sensitive data – systems do not truly become more secure as a result.<\/p>\n

This makes external partners who professionally look after the digital health of companies all the more important. For this reason, the large telecom companies are presumably still well positioned in terms of their infrastructure. Unlike many of their customers. These need simple solutions (“zero touch” security), because they simply cannot afford increasingly expensive recruitment.  <\/p>\n

In conclusion, I consider telecommunications to be one of the key industries affected by the threat landscape. The fact that it represents one of the branches of critical infrastructure increases the relevance of this market many times over. I still see far too few services and skilled professionals that can ensure digital security.<\/p>\n

5G will be the leading standard worldwide by 2025. To what extent does the introduction of this new technology affect not only the quality but also the security of end devices?<\/strong><\/p>\n

When it comes to 5G, it must be clear that the practical benefits for businesses and individuals should be the priority. However, this next step in development should consider the expansion of digital resilience more than ever before. Too often in the past, this topic was left out, thereby opening opportunities for cybercriminals.<\/p>\n

In addition, the partly sluggish transition from 4G to 5G has implications for cybersecurity. 4G has its problems primarily at the interconnect level. The unique identifier of a subscriber, for instance, cannot be encrypted.<\/p>\n

5G addresses this and thus also makes man-in-the-middle attacks more difficult. These are cases in which hackers manage to manipulate users into sending sensitive data to forged destination addresses. Cybersecurity must therefore be an inherent characteristic of technological development and follow historically on from wireless end devices, new mobile standards and the like.<\/p>\n

—<\/p>\n

\"\"<\/a><\/strong><\/p>\n

Frank von Seth began his professional career as an insurance and risk consultant at various companies across three continents and five different countries. Before joining cyan, he worked for over ten years at Aon in Switzerland. In his current role as CEO of cyan AG, he is leading the company into the future and working towards a safer tomorrow for everyone by protecting users on their daily digital and connected journey.<\/p>\n

 <\/p>\n

 <\/p>\n

 <\/p>\n

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