diff --git a/CHANGELOG.md b/CHANGELOG.md
index 69f0b3ad188..33fe7c58fb9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -56,6 +56,7 @@ Docs: https://docs.openclaw.ai
 - Feishu/Run channel fallback: prefer `Provider` over `Surface` when inferring queued run `messageProvider` fallback (when `OriginatingChannel` is missing), preventing Feishu turns from being mislabeled as `webchat` in mixed relay metadata contexts. (#31880) Fixes #31859. Thanks @liuxiaopai-ai.
 - Sandbox/Docker setup command parsing: accept `agents.*.sandbox.docker.setupCommand` as either a string or a string array, and normalize arrays to newline-delimited shell scripts so multi-step setup commands no longer concatenate without separators. (#31953) Thanks @liuxiaopai-ai.
 - Gateway/Plugin HTTP route precedence: run explicit plugin HTTP routes before the Control UI SPA catch-all so registered plugin webhook/custom paths remain reachable, while unmatched paths still fall through to Control UI handling. (#31885) Thanks @Sid-Qin.
+- macOS/LaunchAgent security defaults: write `Umask=63` (octal `077`) into generated gateway launchd plists so post-update service reinstalls keep owner-only file permissions by default instead of falling back to system `022`. (#32022) Fixes #31905. Thanks @liuxiaopai-ai.
 - Security/Node exec approvals: preserve shell/dispatch-wrapper argv semantics during approval hardening so approved wrapper commands (for example `env sh -c ...`) cannot drift into a different runtime command shape, and add regression coverage for both approval-plan generation and approved runtime execution paths. Thanks @tdjackey for reporting.
 - Sandbox/Bootstrap context boundary hardening: reject symlink/hardlink alias bootstrap seed files that resolve outside the source workspace and switch post-compaction `AGENTS.md` context reads to boundary-verified file opens, preventing host file content from being injected via workspace aliasing. Thanks @tdjackey for reporting.
 - Browser/Security output boundary hardening: replace check-then-rename output commits with root-bound fd-verified writes, unify install/skills canonical path-boundary checks, and add regression coverage for symlink-rebind race paths across browser output and shared fs-safe write flows. Thanks @tdjackey for reporting.
diff --git a/src/daemon/launchd-plist.ts b/src/daemon/launchd-plist.ts
index 8cca6d6d8e0..fa2a780a5c8 100644
--- a/src/daemon/launchd-plist.ts
+++ b/src/daemon/launchd-plist.ts
@@ -4,6 +4,7 @@ import fs from "node:fs/promises";
 // intentional gateway restarts. Keep it low so CLI restarts and forced
 // reinstalls do not stall for a full minute.
 export const LAUNCH_AGENT_THROTTLE_INTERVAL_SECONDS = 1;
+// launchd stores plist integer values in decimal; 0o077 renders as 63 (owner-only files).
 export const LAUNCH_AGENT_UMASK_DECIMAL = 0o077;
 
 const plistEscape = (value: string): string =>
diff --git a/src/daemon/launchd.test.ts b/src/daemon/launchd.test.ts
index 0266038d0b9..ca94f8b5602 100644
--- a/src/daemon/launchd.test.ts
+++ b/src/daemon/launchd.test.ts
@@ -189,7 +189,7 @@ describe("launchd install", () => {
     expect(plist).toContain(`<string>${tmpDir}</string>`);
   });
 
-  it("writes KeepAlive=true policy", async () => {
+  it("writes KeepAlive=true policy with restrictive umask", async () => {
     const env = createDefaultLaunchdEnv();
     await installLaunchAgent({
       env,
@@ -202,10 +202,10 @@ describe("launchd install", () => {
     expect(plist).toContain("<key>KeepAlive</key>");
     expect(plist).toContain("<true/>");
     expect(plist).not.toContain("<key>SuccessfulExit</key>");
-    expect(plist).toContain("<key>ThrottleInterval</key>");
-    expect(plist).toContain(`<integer>${LAUNCH_AGENT_THROTTLE_INTERVAL_SECONDS}</integer>`);
     expect(plist).toContain("<key>Umask</key>");
     expect(plist).toContain(`<integer>${LAUNCH_AGENT_UMASK_DECIMAL}</integer>`);
+    expect(plist).toContain("<key>ThrottleInterval</key>");
+    expect(plist).toContain(`<integer>${LAUNCH_AGENT_THROTTLE_INTERVAL_SECONDS}</integer>`);
   });
 
   it("restarts LaunchAgent with bootout-bootstrap-kickstart order", async () => {