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The antennas contained in mobile phones, including smartphones, emit radiofrequency (RF) radiation (non-ionizing "radio waves" such as microwaves); the parts of the head or body nearest to the antenna can absorb this energy and convert it to heat or to synchronised molecular vibrations (the term 'heat', properly applies only to disordered molecular motion).
In the case of arc welding, infrared radiation decreases rapidly as a function of distance, so that farther than three feet away from where welding takes place, it does not pose an ocular hazard anymore but, ultraviolet radiation still does. This is why welders wear tinted glasses and surrounding workers only have to wear clear ones that filter UV.
The classified National Security Agency program TEMPEST focuses on both the spying on systems by observing electromagnetic radiation and the securing of equipment to protect against such attacks. The Federal Communications Commission outlines the rules regulating the unintended emissions of electronic devices in Part 15 of the Code of Federal ...
Feb. 6—Health researchers raised concerns in the 1990s about the possible harmful effects of wireless radiation from cellphones and towers, and their warnings met pushback from ...
In that sense, any wireless technology (including 4G or 3G) can also be used for surveillance. 5G is a weapons system that governments and industries disguise as new technology: Some people likened the 5G radiofrequency transmitters to the US military's directed-energy weapon called Active Denial System (ADS), which was used to heat the surface ...
Microsoft has stepped up the security features in Windows 11 in response to some of the more prevalent threats that most users will encounter today.
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