diff --git a/app/server/index.ts b/app/server/index.ts
index a8cc045c..a390a9c6 100644
--- a/app/server/index.ts
+++ b/app/server/index.ts
@@ -2,6 +2,8 @@ import { createHonoServer } from "react-router-hono-server/bun";
 import { Scalar } from "@scalar/hono-api-reference";
 import { Hono } from "hono";
 import { logger as honoLogger } from "hono/logger";
+import { secureHeaders } from "hono/secure-headers";
+import { rateLimiter } from "hono-rate-limiter";
 import { openAPIRouteHandler } from "hono-openapi";
 import { runDbMigrations } from "./db/db";
 import { authController } from "./modules/auth/auth.controller";
@@ -41,8 +43,16 @@ export const scalarDescriptor = Scalar({
 
 const app = new Hono()
 	.use(honoLogger())
+	.use(secureHeaders())
+	.use(
+		rateLimiter({
+			windowMs: 15 * 60 * 1000,
+			limit: 100,
+			keyGenerator: (c) => c.req.header("x-forwarded-for") ?? "",
+		}),
+	)
 	.get("healthcheck", (c) => c.json({ status: "ok" }))
-	.route("/api/v1/auth", authController.basePath("/api/v1"))
+	.route("/api/v1/auth", authController)
 	.use("/api/v1/volumes/*", requireAuth)
 	.use("/api/v1/repositories/*", requireAuth)
 	.use("/api/v1/backups/*", requireAuth)
@@ -56,8 +66,9 @@ const app = new Hono()
 	.route("/api/v1/system", systemController)
 	.route("/api/v1/events", eventsController);
 
-app.get("/api/v1/openapi.json", generalDescriptor(app));
-app.get("/api/v1/docs", scalarDescriptor);
+// API documentation endpoints require authentication
+app.get("/api/v1/openapi.json", requireAuth, generalDescriptor(app));
+app.get("/api/v1/docs", requireAuth, scalarDescriptor);
 
 app.onError((err, c) => {
 	logger.error(`${c.req.url}: ${err.message}`);
diff --git a/app/server/modules/auth/auth.controller.ts b/app/server/modules/auth/auth.controller.ts
index c78d2818..e2aaecea 100644
--- a/app/server/modules/auth/auth.controller.ts
+++ b/app/server/modules/auth/auth.controller.ts
@@ -1,5 +1,5 @@
 import { validator } from "hono-openapi";
-
+import { rateLimiter } from "hono-rate-limiter";
 import { Hono } from "hono";
 import { deleteCookie, getCookie, setCookie } from "hono/cookie";
 import {
@@ -31,6 +31,13 @@ const COOKIE_OPTIONS = {
 };
 
 export const authController = new Hono()
+	.use(
+		rateLimiter({
+			windowMs: 15 * 60 * 1000,
+			limit: 5,
+			keyGenerator: (c) => c.req.header("x-forwarded-for") ?? "",
+		}),
+	)
 	.post("/register", registerDto, validator("json", registerBodySchema), async (c) => {
 		const body = c.req.valid("json");
 
diff --git a/bun.lock b/bun.lock
index 1668570b..419e3cac 100644
--- a/bun.lock
+++ b/bun.lock
@@ -36,6 +36,7 @@
         "es-toolkit": "^1.42.0",
         "hono": "4.10.5",
         "hono-openapi": "^1.1.1",
+        "hono-rate-limiter": "^0.5.0",
         "http-errors-enhanced": "^4.0.2",
         "isbot": "^5.1.32",
         "lucide-react": "^0.555.0",
@@ -715,6 +716,8 @@
 
     "hono-openapi": ["hono-openapi@1.1.1", "", { "peerDependencies": { "@hono/standard-validator": "^0.1.2", "@standard-community/standard-json": "^0.3.5", "@standard-community/standard-openapi": "^0.2.8", "@types/json-schema": "^7.0.15", "hono": "^4.8.3", "openapi-types": "^12.1.3" }, "optionalPeers": ["@hono/standard-validator", "hono"] }, "sha512-AC3HNhZYPHhnZdSy2Je7GDoTTNxPos6rKRQKVDBbSilY3cWJPqsxRnN6zA4pU7tfxmQEMTqkiLXbw6sAaemB8Q=="],
 
+    "hono-rate-limiter": ["hono-rate-limiter@0.5.0", "", { "peerDependencies": { "hono": "^4.10.8", "unstorage": "^1.17.3" }, "optionalPeers": ["unstorage"] }, "sha512-Cps4udhDdPQ3O1Dm1fOzunI1iN1fW3TcVj1YvPdIjxHiHRitTsEz05q+BjgnLtcVDaDGbyuYyBaAxIy1DD1bMw=="],
+
     "http-errors": ["http-errors@2.0.0", "", { "dependencies": { "depd": "2.0.0", "inherits": "2.0.4", "setprototypeof": "1.2.0", "statuses": "2.0.1", "toidentifier": "1.0.1" } }, "sha512-FtwrG/euBzaEjYeRqOgly7G0qviiXoJWnvEH2Z1plBdXgbyjv34pHTSb9zoeHMyDy33+DWy5Wt9Wo+TURtOYSQ=="],
 
     "http-errors-enhanced": ["http-errors-enhanced@4.0.2", "", {}, "sha512-5EXN1gmhJVvuWpNfz+RclWvLnnENEXNMPfww3gm30H9mQzPF4QSBj/MD5FRkVDxGIUhO/cR2GSLCd/6C6xpBcw=="],
diff --git a/package.json b/package.json
index 697d0fe4..7c70e1d0 100644
--- a/package.json
+++ b/package.json
@@ -49,6 +49,7 @@
 		"es-toolkit": "^1.42.0",
 		"hono": "4.10.5",
 		"hono-openapi": "^1.1.1",
+		"hono-rate-limiter": "^0.5.0",
 		"http-errors-enhanced": "^4.0.2",
 		"isbot": "^5.1.32",
 		"lucide-react": "^0.555.0",