Questão de Língua Portuguesa

3 Leia o texto I e responda às questões 11, 12 e 13. Hacking wireless printers with phones on drones You might think that working on a secured floor in a 30-story office tower puts you out of reach of Wi-Fi hackers out to steal your confidential documents. But researchers in 5 Singapore have demonstrated how attackers using a drone plus a mobile phone could easily intercept documents sent to a seemingly inaccessible Wi-Fi printer. The method they devised is actually intended to help organizations determine cheaply 10 and easily if they have vulnerable open Wi-Fi devices that can be accessed from the sky. But the same technique could also be used by corporate spies intent on economic espionage. Student researchers Jinghui Toh and 15 Hatib Muhammad developed the method under the guidance of Elovici as part of a governmentsponsored cybersecurity defense project. They focused on wireless printers as their target because they say these are often an overlooked weak spot in offices. Many Wi-Fi printers come with the Wi- 20 Fi connection open by default, and companies forget that this can be a method for outsiders to steal data. For their demo they use a standard drone from the Chinese firm DJI and a Samsung phone. 25 Their smartphone app searches for open printer SSIDs and company SSIDs. From the SSIDs, the app can identify the name of the company they’re scanning as well as the printer model. It then 30 poses as the printer and forces any nearby computers to connect to it instead of the real printer. Once a document is intercepted, which takes just seconds, the app can send it to an attacker’s Dropbox account using the phone’s 3G or 4G connection, and also send it on to the real 35 printer so a victim wouldn’t know the document had been intercepted. Adaptado de http://www.wired.com. Acessado em 06-10-2015