• Tuesday 2 October 2018 About SIDN

    Dutch people don't pay enough attention to smartphone security

    SIDN's Hackman survey highlights unsafe habits of smartphone users in the Netherlands

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  • Wednesday 25 January 2017 About SIDN

    Visitor data insecure on 9 out of 10 business websites

    SSL encryption underused

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  • Thursday 5 April 2018 Knowledge bank

    Centralised DNSSEC validation on closed networks

    31 October 2012 The Authentic Data (AD) flag is used by caching DNS servers to indicate that they have validated the DNSSEC records. The idea is that the client doesn't then have to repeat the check. Use of the AD flag is, of course, safe only on a network where the security of the last mile is assured. Examples include company networks, campus networks and the closed networks belonging to internet access providers and mobile operators. On such networks, DNSSEC validation and DNS caching can be centralised on the recursive DNS servers.

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