https://simjacker.com

AdaptiveMobile Security

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New Simjacker vulnerability exploited by surveillance companies for
espionage operation

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Download the Simjacker Technical Report >
 

Do you know if attacks like Simjacker or other next generation
attacks are happening in your network?

Book a meeting with the AdaptiveMobile Security Threat Intelligence
Experts >

AdaptiveMobile Security have uncovered a new and previously
undetected vulnerability and associated exploits, called Simjacker.
This vulnerability is currently being actively exploited by a
specific private company that works with governments to monitor
individuals. Simjacker and its associated exploits is a huge jump in
complexity and sophistication compared to attacks previously seen
over mobile core networks. The main Simjacker attack involves an SMS
containing a specific type of spyware-like code being sent to a
mobile phone, which then instructs the SIM Card within the phone to
'take over' the mobile phone to retrieve and perform sensitive
commands. The location information of thousands of devices was
obtained over time without the knowledge or consent of the targeted
mobile phone users. During the attack, the user is completely unaware
that they received the attack, that information was retrieved, and
that it was successfully exfiltrated. However the Simjacker attack
can, and has been extended further to perform additional types of
attacks.

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Example of how Simjacker can track mobile phone location of
vulnerable subscribers

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The Scale of the Simjacker Vulnerability and Attacks

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.
The Simjacker vulnerability could extend to over 1 billion mobile
phone users globally, potentially impacting countries in the
Americas, West Africa, Europe, Middle East and indeed any region of
the world where this SIM card technology is in use.

Stopping the attacks and building long-term defences

We are quite confident that this exploit has been developed by a
specific private company that works with governments to monitor
individuals. 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. We have blocked attacks and are committed to using our
global threat intelligence to build defences against these new
sophisticated attacks that are circumventing current security
measures.

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Learn more about the technology behind Simjacker >
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