It allows users to access the Phonebook, SMS archives, and technical files stored on the SIM's EEPROM.
“It’s not a vent field,” Mira whispered. “Something is down there. Something that learned to hide the moment we upgraded our eyes.”
from two or three different active SIM cards and load them onto a single "Multi-SIM" or "Silver Card". This allowed one card to switch between different phone numbers (though not simultaneously). Backing up the IMSIcap I cap M cap S cap I Woron Scan 1.09
While collision searching is a cryptographic attack, Woron Scan 1.09 also leveraged a form of side-channel analysis, specifically a timing attack or power analysis inference (depending on the hardware used). In the context of the software, the attack
Specifically, Woron Scan was most effective against SIM cards that used the , a now-deprecated cryptographic standard for authenticating a SIM card to a mobile network. Because of a known vulnerability in this algorithm, it was possible to "crack" the card's secret key (known as the Ki ) using a tool like Woron Scan. Once the Ki was obtained, the SIM could be duplicated onto a blank programmable card. It allows users to access the Phonebook, SMS
from GSM SIM cards. It is most famous for its ability to extract the Ki (Authentication Key)
: Designed for Comp128v1 authentication algorithms, which were standard on early GSM cards but have since been replaced by more secure versions. Technical and Safety Limitations Something that learned to hide the moment we
Used optimized mathematical lookup tables to drastically lower the number of queries required to extract the Ki key, decreasing cracking times from hours to minutes.
A unique, publicly read identification number used by cellular networks to identify an individual mobile subscription.
: This is extremely old software originally built for Windows XP/Vista eras. It often requires compatibility modes or specialized legacy hardware interfaces (like Phoenix/Smartmouse programmers) to function. Safety and Legality
The process is often described as a "brute-force" or "calculation" process.