Fever can also use a computer to steal data? How is this going?

  

Written before many hackers use the Internet to steal information case, U disk, USB plug has been invaded danger. Someone asked how to ensure that our information security? After reading the following, you will not want to ask this question. 
　　Because recently, researchers have discovered a new type of attack called BitWhisper, which steal information the way we would not guess - using computers fever. 

　　We all know, too much computer processing capacity, the computer will follow the temperature rise. And this technology is to use a controlled temperature rise and receiving communication system, the receiving system through the computer's internal heat sensor detects a temperature change, then these changes into "1", "0" this code, transmitted to Nearby networking systems, while sending malicious commands to the system through the network gap system. This whole process without networking, you only need a computer and a computer built-in thermal heat sensors can be achieved. 

　　But the computer itself during operation temperature will fluctuate, how to distinguish between normal temperature fluctuations it? In addition to the set time, but due to the use of heat to steal the information you need to install malicious software on your machine, the attacker can elevate the temperature control in a reasonable range, so as not to arouse suspicion makes the machine overheating. 

　　Although such attacks can only transmit one hour eight data, but to convey the simple instructions or steal passwords sufficient. 

　　So, the Internet is no absolute security, unless you are not online.