diff --git a/year4/semester2/CT437/materials/01. ct437 Outline.pdf b/year4/semester2/CT437/materials/ct437 Outline.pdf similarity index 100% rename from year4/semester2/CT437/materials/01. ct437 Outline.pdf rename to year4/semester2/CT437/materials/ct437 Outline.pdf diff --git a/year4/semester2/CT437/materials/02. ct437_00 Definitions.pdf b/year4/semester2/CT437/materials/ct437_00 Definitions.pdf similarity index 100% rename from year4/semester2/CT437/materials/02. ct437_00 Definitions.pdf rename to year4/semester2/CT437/materials/ct437_00 Definitions.pdf diff --git a/year4/semester2/CT437/materials/ct437_01 The CIA Triad.pdf b/year4/semester2/CT437/materials/ct437_01 The CIA Triad.pdf new file mode 100644 index 00000000..535e66e5 Binary files /dev/null and b/year4/semester2/CT437/materials/ct437_01 The CIA Triad.pdf differ diff --git a/year4/semester2/CT437/materials/ct437_02 - Introduction Cryptography.pdf b/year4/semester2/CT437/materials/ct437_02 - Introduction Cryptography.pdf new file mode 100644 index 00000000..61c14784 Binary files /dev/null and b/year4/semester2/CT437/materials/ct437_02 - Introduction Cryptography.pdf differ