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    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
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      <marc:subfield code="a">n-cn---</marc:subfield>
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      <marc:subfield code="a">D97-4/10-189-2021E-PDF</marc:subfield>
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      <marc:subfield code="a">Top 10 IT security actions to protect internet-connected networks and information.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Ottawa] : </marc:subfield>
      <marc:subfield code="b">Communications Security Establishment = Centre de la sécurité des telecommunications, </marc:subfield>
      <marc:subfield code="c">September 24, 2021.</marc:subfield>
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      <marc:subfield code="a">1 online resource (15 pages).</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Les 10 mesures de sécurité des TI : n° 6, misé sur une formation sur mesure en matière de cybersécurité.</marc:subfield>
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      <marc:subfield code="a">"This document supersedes ITSM.10.189 Top 10 IT Security Actions to Protect Internet-Connected Networks and Information and ITSB-89 v3 Top 10 IT Security Actions to Protect Government of Canada Internet-Connected Networks and Information."</marc:subfield>
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      <marc:subfield code="a">"Canadian Centre for Cyber Security."</marc:subfield>
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      <marc:subfield code="a">"Unclassified."</marc:subfield>
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      <marc:subfield code="a">Issued also in HTML format.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (page 15).</marc:subfield>
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      <marc:subfield code="a">"This document lists our top 10 mitigating actions that your organization should take to protect its Internet-connected networks and sensitive information from cyber security threats."--Overview, page 3.</marc:subfield>
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      <marc:subfield code="a">Canadian Centre for Cyber Security, </marc:subfield>
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      <marc:subfield code="a">Communications Security Establishment (Canada), </marc:subfield>
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      <marc:subfield code="t">Les 10 mesures de sécurité des TI visant à protéger les réseaux internet et l'information.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.904399</marc:subfield>
    </marc:datafield>
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      <marc:subfield code="a">Management series (Communications Security Establishment (Canada))</marc:subfield>
      <marc:subfield code="v">ITSM.10.089.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.842856</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">612 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2021/cstc-csec/D97-4-10-189-2021-eng.pdf</marc:subfield>
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      <marc:subfield code="q">HTML</marc:subfield>
      <marc:subfield code="s">N/A</marc:subfield>
      <marc:subfield code="u">https://cyber.gc.ca/en/guidance/top-10-it-security-actions-protect-internet-connected-networks-and-information-itsm10089</marc:subfield>
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