
Inteligência Artificial Revela com 95% de Exatidão o que Pessoas Digitam
Um grupo de pesquisadores britânicos, espalhados por diversas instituições de ensino, desenvolveu uma inovadora inteligência artificial que pode gerar preocupações significativas no campo da privacidade. De acordo com os cientistas, esta tecnologia é capaz de utilizar um microfone para descobrir com precisão de 95% o que um indivíduo digitou em seu teclado. Isso pode ser potencialmente utilizado para ataques digitais.
Como Funciona
Os pesquisadores relatam que essa taxa de sucesso foi alcançada quando o microfone de um smartphone era utilizado a uma distância razoavelmente curta. Se considerarmos uma chamada feita pelo Zoom, a solução conseguiu determinar com 93% de certeza o que uma pessoa do outro lado da conversa estava digitando. Um número que também é bastante assustador.
Apesar de tecnicamente impressionante, o algoritmo de inteligência artificial(https://www.adrenaline.com.br/microsoft/microsoft-anuncia-fim-do-suporte-a-cortana-no-windows/) carrega o risco potencial de comprometer a privacidade de muitos indivíduos. Criminosos que possuam acesso a esta tecnologia poderiam fazer com que uma pessoa revele suas senhas, conversas privadas e outras informações sensíveis sem que ela sequer perceba.
Ameaça à Privacidade
O que torna o algoritmo ainda mais preocupante é o fato de que ele possui várias ‘entradas’ para invadir a privacidade de alguém. Um indivíduo pode até desativar o microfone conectado ao seu PC, porém, dispositivos como alto-falantes inteligentes e smartphones, comumente encontrados em vários ambientes, possuem capacidades de gravação.
Os pesquisadores treinaram a inteligência artificial(https://www.adrenaline.com.br/tendencia/kickstarter-muda-sua-politica-sobre-projetos-que-envolvem-inteligencia-artificial/) ao pressionar 25 vezes cada uma das 36 teclas presentes em um MacBook Pro moderno, registrando individualmente o som de cada uma delas. A partir disso, eles isolaram os espectrogramas e formatos de onda de cada gravação, identificando cada tecla de maneira individual, o que permitiu que elas fossem identificadas facilmente pelo algoritmo.
Teste de Precisão
O teste final de precisão foi realizado usando o microfone de um iPhone 13, colocado a 17 centímetros do computador utilizado, e uma chamada por Zoom. Segundo os pesquisadores, quem se preocupa com a segurança pode ter que se acostumar a mudar seu padrão de digitação ou a usar senhas geradas aleatoriamente por softwares especializados para evitar ser uma vítima potencial de ataques novos. O uso de som branco e filtros de áudio também é recomendado, bem como o uso de biometria para acessar locais que contenham informações sensíveis.
Conclusão
A nova inteligência artificial, embora seja um feito tecnológico notável, levanta questões sérias sobre a privacidade dos usuários. As autoridades e os legisladores precisam estar cientes dessa nova tecnologia e tomar as medidas necessárias para proteger os direitos de privacidade dos indivíduos.
Fonte: Bleeping Computer(https://www.bleepingcomputer.com/news/security/new-acoustic-attack-steals-data-from-keystrokes-with-95-percent-accuracy/)
Para informações adicionais, acesse o site


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