diff --git a/frontends/nextjs/src/lib/security/secure-db/audit-log-store.ts b/frontends/nextjs/src/lib/security/secure-db/audit-log-store.ts
new file mode 100644
index 000000000..a33739e34
--- /dev/null
+++ b/frontends/nextjs/src/lib/security/secure-db/audit-log-store.ts
@@ -0,0 +1,32 @@
+import type { AuditLog } from './types'
+
+const DEFAULT_AUDIT_LOG_LIMIT = 100
+const MAX_AUDIT_LOGS = 1000
+const auditLogs: AuditLog[] = []
+
+const normalizeLimit = (limit: number): number => {
+  if (!Number.isFinite(limit)) return DEFAULT_AUDIT_LOG_LIMIT
+  return Math.max(0, Math.floor(limit))
+}
+
+export const addAuditLog = (log: AuditLog): void => {
+  auditLogs.push(log)
+
+  if (auditLogs.length > MAX_AUDIT_LOGS) {
+    auditLogs.splice(0, auditLogs.length - MAX_AUDIT_LOGS)
+  }
+}
+
+export const listAuditLogs = (limit: number = DEFAULT_AUDIT_LOG_LIMIT): AuditLog[] => {
+  const normalizedLimit = normalizeLimit(limit)
+  if (normalizedLimit === 0) return []
+
+  const slice = auditLogs.slice(-normalizedLimit)
+  return slice.reverse()
+}
+
+export const clearAuditLogs = (): void => {
+  auditLogs.length = 0
+}
+
+export { DEFAULT_AUDIT_LOG_LIMIT, MAX_AUDIT_LOGS }