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Vulnerabilities exist at all levels in all areas. Criminals have already learned how to compromise RF tracking systems of cars, containers and other cargo. Rigs and drillships exchange massive amounts of RF data with shoreside partners to conduct operations. State and non-state actors, including hacker organizations, have vowed to attack all forms of energy production worldwide. RF jamming has intensified globally. North Korea has proven the effectiveness of long-range jamming by its relentless attacks on South Korea in recent years. Iran and Iraq are also expert state gsm jammer, among many others. The proliferation of RF jammers has been raising concerns worldwide and increasing the likelihood of serious maritime sector jamming incidents.
https://www.perfectjammer.com/gps-blockers-jammers.html

US department of Homeland Security (DHS) operates autonomous drones patrolling over the USA-Mexico border, which suffer jamming attacks by border smugglers, mainly the drug cartels," said Gai Mar-Chaim, Senior Partner at the management consulting firm POC. "The DHS gives high priority for lightweight anti-jamming solutions for this challenge, and GPSdome is the only commercially available solution that weighs less than 150 gram and consumes power less than 0.75 Watt.
https://www.perfectjammer.com/wireless-wifi-bluetooth-jammers.html

The BBC broadcasts are carried on shortwave frequencies from Taiwan and Uzbekistan, and on medium wave from Mongolia, 38 North reported. It said it wasn’t possible to determine if the medium wave frequency was also targeted by jamming.

“These promising test results mark a step forward countering the security threat posed by contraband cellphones,” said Assistant Attorney General Beth Williams of the Justice Department’s Office of Legal Policy. “The results indicate the potential for localized impact of this micro-jamming technology. That is an encouraging sign that brings us closer to a solution that will make our communities safer and help prevent the continuation of criminal activity from inside prison walls.
https://www.perfectjammer.com/all-cell-phone-jammers-blockers.html

None of this is particularly noteworthy. Electronic-warfare aircraft, such as the EA-18G, have become a fixture of aerial warfare since World War II. Jamming radars, missile-guidance systems and communications networks has become par for the course. For that matter, the Pentagon worries about Russian and Chinese capabilities to jam or spoof GPS links that are key to accurate navigation and targeting.
https://www.perfectjammer.com/

The cell phone signal jammer, developed by the Threat Systems Management Office at Redstone Arsenal, Ala., can be installed between the antennae and radio transceiver and programmed to produce various jamming signals.Dr. Dousseki’s discussion from a physician’s perspective brought our attention to a practice of signal jamming that US armed forces uses to protect our troops against improvised explosive devices while they are on patrol and during operations in these areas. He reminds us that these jamming activities cause problems for children and other hearing-impaired patients who use cochlear implants in the area where the jamming is used.