There are nicely documented safety flaws in GSM, and publicly accessible instruments to take advantage of them. On the identical time, it has develop into significantly cheaper and simpler to investigate GSM visitors over the previous few years. Open supply instruments similar to gr-gsm have matured, and the group has developed strategies for capturing the GSM spectrum with out the necessity for costly SDR radios.

With lower than $100 and a weekend it’s attainable to seize and analyze GSM visitors. With some further effort it’s attainable to decrypt your personal visitors, and relying on how your cellular supplier has arrange their community it could even be attainable for someone else to illegally decrypt visitors they don’t personal.

GSM is terrifying.