Jornal da Record Interview - Blocked Phones in Brazil & IMEI Swapping - Forensic Expert Vallim13 dez 2019
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Report on IMEI tampering in stolen and robbed phones, with almost 12 million records blocked in Brazil and programs developed in China that make it possible to change the code and put the devices back into service, feeding the trade in the Santa Efigênia district of São Paulo. The technology security specialist explains that blocking stops being effective because the system does not recognise the replaced number, and that criminals tend to stay ahead of the authorities. The report notes that Anatel, the telecom regulator, acknowledges 1.4 million devices with an invalid or tampered IMEI, and that change also depends on consumer behaviour.
The interview is in Portuguese. The summary above is in English.