Business Wire

ADAPTIVEMOBILE-SECURITY

12.9.2019 09:09:08 CEST | Business Wire | Press release

Share
AdaptiveMobile Security Uncovers Sophisticated Hacking Attacks on Mobile Phones, Exposing Massive Network Vulnerability

Following extensive research, AdaptiveMobile Security, a world leader in cyber-telecoms security, today announced it has uncovered a new and previously undetected vulnerability. This vulnerability is currently being exploited and is being used for targeted surveillance of mobile phone users. The vulnerability and its associated attacks have been named, ‘Simjacker’ as it involves the hijacking of SIM cards and threatens mobile phone users across the globe.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20190912005038/en/

Simjacker extracts the location information of mobile phone users from vulnerable operators, retrieved using malicious SMS messages. The location information of thousands of devices was obtained over time without the knowledge or consent of the targeted mobile phone users. Based on previous intelligence, it is likely that these attacks originated from a surveillance company which works with governments, to track and monitor individuals; bypassing existing signalling protection.

Cathal Mc Daid, Chief Technology Officer of AdaptiveMobile Security explained, “Simjacker represents a clear danger to the mobile operators and subscribers. This is potentially the most sophisticated attack ever seen over core mobile networks. It’s a major wake-up call that shows hostile actors are investing heavily in increasingly complex and creative ways to undermine network security. This compromises the security and trust of customers, mobile operators and impacts the national security of entire countries.”

While the primary attack detected involved the retrieval of mobile phone locations, Simjacker has been further exploited to perform many other types of attacks against individuals and mobile operators such as fraud, scam calls, information leakage, denial of service and espionage. AdaptiveMobile Security Threat Intelligence analysts observed the hackers vary their attacks, testing many of these further exploits.

In theory, all makes and models of mobile phone are open to attack as the vulnerability is linked to a technology embedded on SIM cards. AdaptiveMobile Security research indicates that the Simjacker vulnerability could extend to over 1 billion mobile phone users globally, potentially impacting countries in North and South America, West Africa, Europe, Middle East and indeed any region of the world where this SIM card technology is in use.

Mc Daid continued, “Simjacker worked so well and was being successfully exploited for years because it took advantage of a combination of complex interfaces and obscure technologies, showing that mobile operators cannot rely on standard established defences. Now that this vulnerability has been revealed, we fully expect the exploit authors and other malicious actors will try to evolve these attacks into other areas”.

AdaptiveMobile Security has been working closely with their customers and the wider industry; including both mobile network operators and SIM card manufacturers to protect mobile phone subscribers. AdaptiveMobile Security are committed to using their global threat intelligence to build defences against these new sophisticated attacks that are circumventing current security measures.

Further details on Simjacker are available on www.simjacker.com and Cathal Mc Daid, Chief Technology Officer of AdaptiveMobile Security will be presenting on Simjacker at the Virus Bulletin Conference, London, 3 October 2019.

---Ends---

About

AdaptiveMobile Security is the world leader in cyber-telecoms security, protecting over 2.1 billion subscribers worldwide. The combination of global insight provided by our security specialists teams, our world-leading Threat Intelligence Unit and our proprietary, telecom-grade Network Protection Platform are trusted by the world’s largest service providers to secure their critical communications infrastructure.

The Company HQ is in Dublin with offices in North America, Europe, South Africa, the Middle East and Asia Pacific.

www.adaptivemobile.com

Link:

ClickThru

About Business Wire

Business Wire
Business Wire
101 California Street, 20th Floor
CA 94111 San Francisco

http://businesswire.com

Subscribe to releases from Business Wire

Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.

Latest releases from Business Wire

TOURISE and Oxford Economics Release New Global Report on Tourism Resilience in an Era of Permanent Disruption17.8.2026 16:33:00 CEST | Press release

New analysis shows destinations that assume risk will recover up to 1.5 times faster with global rehabilitation times dropping from 24 months to as little as 10 TOURISE, in collaboration with Oxford Economics, today released a new report, “Resilience in a World that Doesn’t Reset: Redesigning Tourism for an Era of Permanent Disruption.” The analysis of 85 major crises over two decades shows a clear pattern: in a world defined by continuous shocks, destinations that act before disruption hits recover up to 1.5 times faster than those that wait. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260817880835/en/ “In a world that does not reset between crises, disruption is a constant feature of the global tourism landscape,” said His Excellency Ahmed Al-Khateeb, Minister of Tourism of Saudi Arabia and Chairman of TOURISE. “The real test for destinations measures how they prepare for volatility, protect traveler confidence, and mai

The Expensify Visa® Commercial Card Brings New Proactive Spend Controls to 14 Countries17.8.2026 15:00:00 CEST | Press release

New admin-defined spend rules let businesses control how, where, and when every card is used, stopping the wrong spend before it happens instead of cleaning it up after. Expensify, Inc. (Nasdaq: EXFY), the easiest way to manage expenses, travel, and corporate cards, today expanded the reach of Expensify Card spend rules, the market-leading way for businesses to control corporate card spend before it happens. Available to businesses in 14 countries, spend rules let admins decide exactly how, where, and when each Expensify Card can be used, so only compliant transactions go through. Unlike traditional corporate cards that rely on after-the-fact expense review, the Expensify Card enforces policy at the point of purchase. Admins set the rules once, and the card handles the rest. With Expensify Card spend rules, admins can: Lock a card to a subscription. Give each recurring SaaS tool its own virtual card, so a vendor can only ever charge what it should. If the card owner changes teams or le

Riskified Analysis Finds Travel Fraudsters Are Adapting Faster Than Traditional Signals Can Keep Up, With May Flight Risk Up 32%17.8.2026 14:30:00 CEST | Press release

New Travel Industry report reveals sophisticated fraud rings are exploiting trusted customer behaviors across flights, hotels, and travel platforms Riskified (NYSE: RSKD), a global leader in ecommerce fraud and risk intelligence, today released new findings from its Travel Industry Insights report, revealing how sophisticated fraud rings and AI-enabled fraudsters are evolving their tactics across airlines, hotels, and online travel platforms. Riskified’s analysis shows that fraudsters are increasingly adapting their behavior to resemble legitimate travelers, making traditional fraud indicators less reliable and creating new challenges for travel merchants. Riskified’s analysis of hundreds of millions of travel transactions across flights, hotels, and land transportation found that flight fraud risk increased through the first five months of 2026, with May 2026 marking the sharpest year-over-year increase at 32% compared to May 2025. The findings show that sophisticated fraud activity i

PIF Delivers Strong Revenue and Profit Growth in 202517.8.2026 13:54:00 CEST | Press release

Revenue rose 9% to $120 billion while net profit more than doubled to $17 billionCumulative domestic investments reached more than $199 billion since 2021PIF has contributed more than $342 billion to Saudi Arabia’s real non-oil GDP between 2021 and 2025Assets under management exceed $900 billion, up from around $530 in 2021 and $150 billion in 2015 PIF today published its 2025 Annual Report demonstrating strong financial performance and continued progress against its long-term objectives. As a long-term investor with a unique mandate to drive the economic transformation of Saudi Arabia and deliver sustainable financial returns, PIF maintained a diversified portfolio in 2025, balancing returns with national impact and long-term resilience. Maintaining Financial Discipline In 2025, revenue rose 9% year on year to $120 billion, while net profit more than doubled to $17 billion, supported by stronger contributions from maturing portfolio companies. PIF retained over $900 billion in assets

Foundever Successfully Closes a Holistic Recapitalization, Reducing its Debt by Nearly $900 Million and Strengthening its Financial Position for Long-Term Growth17.8.2026 13:30:00 CEST | Press release

Secures $225 Million Equity Infusion; Revolving Credit Facility and Term Loan Maturities ExtendedBenoit Leclercq Appointed Interim Chief Executive Officer to Lead Foundever Through its Next Phase of Growth; Company Begins Formal Search Process for Permanent CEO Foundever Group S.A.® (“Foundever” or the “Company”) – a global leader in integrated customer experience, digital operations and analytics services, today announced that it has successfully closed a holistic recapitalization (the “Transaction”) in coordination with 95.4% of the lenders under its term loan facility (“Term Loan Lenders”), 100% of its revolving credit facility lenders (“RCF Lenders”), and the Company’s existing majority shareholders. The Transaction meaningfully strengthens Foundever’s financial foundation and positions the Company to invest in its growth strategy. Key terms of the Transaction include: Company's existing majority shareholders invest $225 million into common equity. Term loan facility exchange reduc

In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.

Visit our pressroom
World GlobeA line styled icon from Orion Icon Library.HiddenA line styled icon from Orion Icon Library.Eye