Falha em DNS ainda é ameaça

Apesar dos esforços da indústria para proteger os internautas, um em cada quatro servidores continua vulnerável à falha no DNS (Domain Name System), segundo um relatório da The Measurement Factory.

A falha no DNS, descoberta por Dan Kaminsky, permite que um ckacker se coloque como intermediário entre a vítima e um site legítimo, interceptando dados sem que nenhuma das partes perceba. Entre os servidores da amostra selecionada pelo estudo – com 80 milhões de endereços – 25% não fizeram a atualização de software necessária para contornar o problema.

Outro estudo, feito em setembro pela DNSstuff, com 466 empresas, 9,6% não tinham corrigido a falha e 21,9% não sabiam se a atualização em seus servidores havia sido feita ou não.

Como justificativa, 45% alegaram falta de recursos; 30% disseram não estar cientes da falha e 24% afirmaram não ter conhecimento suficiente para fazer o reparo.

Fonte: info.abril.com.br

11 comentários

  • Prezado Mário Aragão, olá.
    Embora você não faça parte dos grupos prioritários para tomar a vacina contra a influenza, se a mesma está sendo oferecida em seu local de trabalho é aconselhável que a tome. Aumentará as suas defesas contra a doença pelo prazo de um ano.
    Sendo a referida vacina fabricada por virus inativados, não provoca a doença e os seus efeitos adversos são infrequentes e controláveis.
    As contra-indicações para esta vacina são duas: 1) alergia a proteínas do ovo da galinha; 2) síndrome de Guillain-Barré (uma doença neurológica rara).
    Um abraço.
    Paulo Gurgel, EntreMentes

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