The way was found by the Israeli scientists from Ben-Gurion University . In the work as "BeatCoin" they have described a method of theft of digital currencies from actually isolated computers.
Experts have infected with a virus the computer which isn't connected to the Internet and local network on which the cryptopurse has been established. After that testing to various technician has begun to understand what method of theft and transfer of keys on the nearby device will become more effective. It has turned out that the virus can infect the computer which isn't connected to the Internet by means of installation of a purse or via the removable device.
Scientists used heat, the electromagnetic field, sound signals, indicators of loading of the hard drive, a computer cooler, phone.
It has become clear that the most operational method of transfer of a 256-bit key from the infected server on the remote device is use of the AirHopper, MOSQUITO and Ultrasonic equipment.
"We prove that, despite high extent of isolation of cold purses, motivated malefactors can steal confidential keys of purses with an air gap. In the presence of confidential keys the malefactor actually owns all cryptocurrency in a purse" — the staff of the university has noted.What became motivation for scientists:
We will remind, breakings of cryptocurrency wallets became a sad reality of our time. For example, at the beginning of this year the developer company of cryptocurrency wallets BlackWallet has fallen a victim of hackers. Criminals have stolen about 444 thousand dollars in Stellar Lumen coins.