<div dir="ltr">Caro colega, não tem nada que pedir desculpa !<div><br></div>"errare humanum est" :-)<div><br></div><div>Eu é que agradeço a quantidade de artigos interessantes a que tenho acesso graças a colegas como o CT1FBF e outros !</div><div><br></div><div>73</div><div>CP</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-07-30 16:02 GMT+01:00 João Costa > CT1FBF <span dir="ltr"><<a href="mailto:ct1fbf@gmail.com" target="_blank">ct1fbf@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Prezado Colega Carlos,<br>
<br>
Tem toda a razão e peço desculpa pelo meu erro.<br>
<span class="HOEnZb"><font color="#888888"><br>
João Costa (CT1FBF)<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
2015-07-30 15:29 GMT+01:00 Carlos Pinheiro <<a href="mailto:karlus.pinheiro@gmail.com">karlus.pinheiro@gmail.com</a>>:<br>
> Caro João Costa,<br>
><br>
> Acho que o título não está muito correcto, pois lendo o artigo conclui-se<br>
> que a ideia é aceder aos dados de um PC através de um simples telemóvel e<br>
> não " aceder a um vulgar telemóvel através da rede GSM ".<br>
><br>
><br>
> 73 de CT1PT<br>
> CP<br>
><br>
><br>
> 2015-07-30 12:25 GMT+01:00 João Costa > CT1FBF <<a href="mailto:ct1fbf@gmail.com">ct1fbf@gmail.com</a>>:<br>
>><br>
>> Researchers hack air-gapped computer with simple cell phone<br>
>><br>
>> THE MOST SENSITIVE work environments, like nuclear power plants, demand<br>
>> the strictest security. Usually this is achieved by air-gapping computers<br>
>> from the Internet and preventing workers from inserting USB sticks into<br>
>> computers. When the work is classified or involves sensitive trade secrets,<br>
>> companies often also institute strict rules against bringing smartphones<br>
>> into the workspace, as these could easily be turned into unwitting listening<br>
>> devices.<br>
>><br>
>> But researchers in Israel have devised a new method for stealing data that<br>
>> bypasses all of these protections—using the GSM network, electromagnetic<br>
>> waves and a basic low-end mobile phone. The researchers are calling the<br>
>> finding a “breakthrough” in extracting data from air-gapped systems and say<br>
>> it serves as a warning to defense companies and others that they need to<br>
>> immediately “change their security guidelines and prohibit employees and<br>
>> visitors from bringing devices capable of intercepting RF signals,” says<br>
>> Yuval Elovici, director of the Cyber Security Research Center at Ben-Gurion<br>
>> University of the Negev, where the research was done.<br>
>><br>
>> The attack requires both the targeted computer and the mobile phone to<br>
>> have malware installed on them, but once this is done the attack exploits<br>
>> the natural capabilities of each device to exfiltrate data. Computers, for<br>
>> example, naturally emit electromagnetic radiation during their normal<br>
>> operation, and cell phones by their nature are “agile receivers” of such<br>
>> signals. These two factors combined create an “invitation for attackers<br>
>> seeking to exfiltrate data over a covert channel,” the researchers write in<br>
>> a paper about their findings.<br>
>><br>
>> The research builds on a previous attack the academics devised last year<br>
>> using a smartphone to wirelessly extract data from air-gapped computers. But<br>
>> that attack involved radio signals generated by a computer’s video card that<br>
>> get picked up by the FM radio receiver in a smartphone.<br>
>><br>
>> Read the full story at:<br>
>><br>
>> <a href="http://www.wired.com/2015/07/researchers-hack-air-gapped-computer-simple-cell-phone/" rel="noreferrer" target="_blank">http://www.wired.com/2015/07/researchers-hack-air-gapped-computer-simple-cell-phone/</a><br>
>><br>
>><br>
>> _______________________________________________<br>
>> CLUSTER mailing list<br>
>> <a href="mailto:CLUSTER@radio-amador.net">CLUSTER@radio-amador.net</a><br>
>> <a href="http://radio-amador.net/cgi-bin/mailman/listinfo/cluster" rel="noreferrer" target="_blank">http://radio-amador.net/cgi-bin/mailman/listinfo/cluster</a><br>
>><br>
><br>
><br>
><br>
> --<br>
> Carlos Pinheiro<br>
><br>
> _______________________________________________<br>
> CLUSTER mailing list<br>
> <a href="mailto:CLUSTER@radio-amador.net">CLUSTER@radio-amador.net</a><br>
> <a href="http://radio-amador.net/cgi-bin/mailman/listinfo/cluster" rel="noreferrer" target="_blank">http://radio-amador.net/cgi-bin/mailman/listinfo/cluster</a><br>
><br>
<br>
</div></div><br>_______________________________________________<br>
CLUSTER mailing list<br>
<a href="mailto:CLUSTER@radio-amador.net">CLUSTER@radio-amador.net</a><br>
<a href="http://radio-amador.net/cgi-bin/mailman/listinfo/cluster" rel="noreferrer" target="_blank">http://radio-amador.net/cgi-bin/mailman/listinfo/cluster</a><br>
<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">Carlos Pinheiro<br></div>
</div>