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Will The TeraHertz Band Increase Wi-Fi Speeds?
December 9, 2016 by admin
Filed under Around The Net
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Researchers have worked out a way to push Wi-Fi speeds to 34 Gbps using the TeraHertz band.
While greater bandwidth in the 300GHz and above band has been known for a while it is pointless because the range makes it a chocolate teapot.
Some researchers have managed to hit 100 Gbps but when it only works for a few centimeters it is not commercially viable.
Now boffins at the Tokyo Institute of Technology have got the technology to provide a great 34 Gbps speed with a decent range.
Naoto Oshimo, one of the scientists behind this latest test, said that “device performance is almost sufficient for short-distance wireless communication such as KIOSK downloads, which might be its first application”. By that they mean that they have managed 10 metres, almost OK for home use.
Oshimo believes that this technology will scale hugely in terms of the speed as well, and we could eventually be looking at topping the 1Tbps mark.
Courtesy-Fud
Hackers Going After Traffic Signs
After hackers played several high-profile pranks with traffic signs, including warning San Francisco drivers of a Godzilla attack, the U.S. government advised operators of electronic highway signs to take “defensive measures” to better secure their property.
Last month, signs on San Francisco’s Van Ness Ave were photographed flashing “Godzilla Attack! Turn Back” and highway signs across North Carolina were tampered with last week to read “Hack by Sun Hacker.”
The Department of Homeland Security’s Industrial Control Systems Cyber Emergency Response Team, or ICS-CERT, this week advised cities, highway operators and other customers of digital-sign maker Daktronics Inc to take “defensive measures” to minimize the possibility of similar attacks.
It said that information had been posted on the Internet advising hackers how to access those systems using default passwords coded into the company’s software. “ICS-CERT recommends entities review sign messaging, update access credentials and harden communication paths to the signs,” the agency said in an alert posted on Thursday.
Jody Huntimer, a representative for Daktronics, declined to say if the recent attacks involved the bug reported by ICS-CERT.
“We are working with the ICS-CERT team to clarify the current alert and will release a statement once we have assessed the situation and developed customer recommendations,” Huntimer said via email.
Krebs on Security, a widely read security blog, posted a confidential report from the Center for Internet Strategy, or CIS, which was sent to state security officials. It warned that the pranks created a public safety risk because drivers often slow or stop to view the signs and take pictures.
CIS also predicated that amateur hackers might attempt to hack into other systems in the coming weeks following the May 27 release of “Watch Dogs,” a video game from Ubisoft focused on hacking critical infrastructure.