<record>
  <controlfield tag="001">266</controlfield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">Online Social Networks</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">Social Network Security</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">Social Engineering</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">Large-scale Infiltration</subfield>
  </datafield>
</record>