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More SIM Cards Vulnerable to Simjacker Attack Than Previously Disclosed
WIB SIM ToolKit Also Leads To SimJacker Attacks
Following the Simjacker revelation, Lakatos, a researcher at Ginno Security Lab, reached out to The Hacker News earlier this week and revealed that another dynamic SIM toolkit, called Wireless Internet Browser (WIB), can also be exploited in the same way, exposing another set of hundreds of millions of mobile phones users to remote hackers.
Simjacker Vulnerability
Cybersecurity researchers today revealed the existence of a new and previously undetected critical vulnerability in SIM cards that could allow remote attackers to compromise targeted mobile phones and spy on victims just by sending an SMS.
Dubbed "SimJacker," the vulnerability resides in a particular piece of software, called the S@T Browser (a dynamic SIM toolkit), embedded on most SIM cards that is widely being used by mobile operators in at least 30 countries and can be exploited regardless of which handsets victims are using.
What's worrisome? A specific private company that works with governments is actively exploiting the SimJacker vulnerability from at least the last two years to conduct targeted surveillance on mobile phone users across several countries.