Masu bincike daga Jami'ar Michigan da Jami'ar Osaka sabuwar dabarar kai hari , yana ba ku damar kwaikwayi umarnin murya nesa nesa ta hanyar amfani da Laser don na'urorin da ke goyan bayan sarrafa murya, irin su masu magana da hankali, allunan, wayoyin hannu da tsarin kula da gida mai wayo ta amfani da Mataimakin Google, Amazon Alexa, Facebook Portal da Apple Siri. A yayin gwaje-gwajen, an nuna harin da ya ba da damar sauya umarnin murya a boye daga nesa na mita 75 ta gilashin taga da mita 110 a sararin samaniya.
Harin ya dogara ne akan amfani , a cikin abin da ɗaukar haske (modulated) haske ta hanyar abu yana haifar da tashin hankali na thermal na matsakaici, canji a cikin nauyin kayan aiki da bayyanar sautin sautin da aka gane ta hanyar microphone membrane. Ta hanyar daidaita ƙarfin Laser da mayar da hankali kan katako akan rami tare da makirufo, zaku iya cimma haɓakar girgizar sauti waɗanda ba za a iya jin su ba ga wasu, amma makirufo za su gane su.
Harin ya shafi makirufonin lantarki da ake amfani da su a na'urorin zamani ().
Daga cikin na'urorin masu amfani da aka gwada don kamuwa da matsalar akwai nau'ikan Google Home, Google NEST, Amazon Echo, Echo Plus/Spot/Dot, Facebook Portal Mini, Fire Cube TV, EchoBee 4, iPhone XR, iPad 6th Gen, Samsung Galaxy S9 da Google Pixel 2, kuma makullai masu wayo da tsarin sarrafa murya don motocin Tesla da Ford. Yin amfani da hanyar kai hari, zaku iya kwaikwayi bayar da umarni don buɗe ƙofar gareji, yin sayayya ta kan layi, gwada lambar PIN don samun damar kulle mai wayo, ko fara motar da ke goyan bayan sarrafa murya.
A mafi yawan lokuta, ikon Laser na 50mW ya isa ya kai hari a nesa fiye da 60. Don kai harin, an yi amfani da alamar Laser dalar Amurka $14-$18, direban Laser Wavelength Electronics LD5CHA $339, Amplifier audio na Neoteck NTK059 $28, da ruwan tabarau na $650 Opteka 1300-200mm telephoto. Don daidaita tsayin daka a nesa mai nisa daga na'urar, masu gwaji sun yi amfani da na'urar hangen nesa a matsayin abin gani. A kusa da kewayo, maimakon Laser, tushen haske mai haske mara hankali, kamar .
Harin yawanci baya buƙatar simintin muryar mai shi, tun da yawanci ana amfani da tantance murya a matakin shiga na'urar (tabbatar da lafazin "OK Google" ko "Alexa", wanda za'a iya yin rikodin a gaba sannan a yi amfani da shi don daidaitawa. sigina a lokacin harin). Hakanan za'a iya yin karyar halayen murya ta kayan aikin haɗa magana ta na'ura ta zamani. Don toshe harin, ana ƙarfafa masana'antun su yi amfani da ƙarin tashoshi masu tabbatar da mai amfani, amfani da bayanai daga makirufo biyu, ko shigar da wani shinge a gaban makirufo wanda ke toshe hanyar haske kai tsaye.
source: budenet.ru