Many SIM cards manufactured after 2002 include a "maximum query" limit. If a software like Woron Scan attempts to ping the card too many times to find the Ki, the SIM will permanently lock itself (self-destruct) to prevent cloning.
When you launch Woron Scan 1.09, you are greeted with a grey, utilitarian window. The main tab features: Woron Scan 1.09 Software