diff --git a/public/.well-known/security.txt b/public/.well-known/security.txt
new file mode 100644
index 00000000..bae1f4ca
--- /dev/null
+++ b/public/.well-known/security.txt
@@ -0,0 +1,46 @@
+-----BEGIN PGP SIGNED MESSAGE-----
+Hash: SHA256
+
+# Oak National Academy - reporting security vulnerabilities to the Oak National team
+
+# Please report any security vulnerabilities to us via the contact method(s) below, only after reading our security disclosure policy.
+Contact: mailto:security@thenational.academy
+Contact: https://docs.github.com/en/code-security/security-advisories/guidance-on-reporting-and-writing/privately-reporting-a-security-vulnerability
+Preferred-Languages: en
+
+# Encrypt your messages to Oak National Academy using the PGP key below
+Encryption: https://www.thenational.academy/.well-known/pgp-key.txt
+Encryption: https://keys.openpgp.org/vks/v1/by-fingerprint/E925058764BF1E055A95CFA7971F062051B60B7D
+
+# This security is annually reviewed
+Expires: 2024-07-31T20:59:00.000Z
+
+# Oak National Academy Security Disclosure Policy
+Policy: https://www.thenational.academy/legal/security-disclosure-policy/
+
+# Our security.txt is hosted at the following canonical locations
+Canonical: https://www.thenational.academy/.well-known/security.txt
+
+# Our security acknowledgments page
+Acknowledgments: https://www.thenational.academy/.well-known/security-credits.txt
+
+# We're continually recruiting at Oak National Academy, please visit the link below
+Hiring: https://jobs.thenational.academy
+
+# Please see https://securitytxt.org/ for details of the specification of this file
+-----BEGIN PGP SIGNATURE-----
+
+iQIzBAEBCAAdFiEE6SUFh2S/HgValc+nlx8GIFG2C30FAmSHDA0ACgkQlx8GIFG2
+C3342w/+K5DuDMWdMGlwfsrMRXZYfrShWpxsHf8IsRC1wd7ZQBdeotXuhWpRw6Rt
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+BUZfOwXUdmzGLX0Zbh2oQ2uNTvCoD4xM3lvF45yVIvzaXP86OqWIO31+FbIhX7aZ
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+-----END PGP SIGNATURE-----
\ No newline at end of file
diff --git a/src/image-map.ts b/src/image-map.ts
index 71f48569..a7919607 100644
--- a/src/image-map.ts
+++ b/src/image-map.ts
@@ -1,4 +1,4 @@
-type VersionedSvg = { [key: string]: `v${string}.svg` };
+type VersionedSvgMap = { [key: string]: `v${string}.svg` };
 
 // the values of the icons object are the paths to the versioned images in the Cloudinary
 export const icons = {
@@ -146,7 +146,7 @@ export const icons = {
   "audio-clip-small": "v1731951210/teacher-journey/audio_clip_small.svg",
   "bookmark-outlined": "v1734519491/icons/bookmark-outlined_rxe5v0.svg",
   "bookmark-filled": "v1734519491/icons/bookmark-outlined_rxe5v0.svg",
-} as const satisfies VersionedSvg;
+} as const satisfies VersionedSvgMap;
 
 export type IconName = keyof typeof icons;
 
@@ -167,13 +167,13 @@ export const backgrounds = {
   "line-pink": "v1712912389/pupil-journey/line-pink.svg",
   "line-lavender": "v1712912348/pupil-journey/line-lavender.svg",
   "line-mint": "v1712912348/pupil-journey/line-lavender.svg",
-} as const satisfies VersionedSvg;
+} as const satisfies VersionedSvgMap;
 
 export type BackgroundName = keyof typeof backgrounds;
 
 export const assets = {
   underline: "v1725550624/underline-1_icqa0u.svg",
   "horizontal-rule": "v1725608698/horizontal-rule_rqdc6c.svg",
-} satisfies VersionedSvg;
+} satisfies VersionedSvgMap;
 
 export type AssetName = keyof typeof assets;