Cartel's Underground Cellular Networks: Criminal Innovation.

The provided source discusses allegations that Mexican drug cartels are developing their own sophisticated cellular networks, moving beyond simple encrypted apps or burner phones. These networks are purportedly built using modified commercial hardware, open-source software, and advanced, custom encryption methods like "geolock" which reportedly uses environmental factors for key generation. The motivation for this technological leap is attributed to past surveillance vulnerabilities, particularly a 2009 arrest. While the feasibility of basic private networks is acknowledged, the more advanced technical claims regarding deep hardware modifications and unique cryptographic systems require further independent verification, suggesting a potential technological arms race between criminal organizations and authorities.