diff --git a/extensions/zalouser/src/monitor.account-scope.test.ts b/extensions/zalouser/src/monitor.account-scope.test.ts
new file mode 100644
index 00000000000..14c1520d003
--- /dev/null
+++ b/extensions/zalouser/src/monitor.account-scope.test.ts
@@ -0,0 +1,99 @@
+import type { OpenClawConfig, PluginRuntime, RuntimeEnv } from "openclaw/plugin-sdk";
+import { describe, expect, it, vi } from "vitest";
+import { __testing } from "./monitor.js";
+import { setZalouserRuntime } from "./runtime.js";
+import type { ResolvedZalouserAccount, ZcaMessage } from "./types.js";
+
+const sendMessageZalouserMock = vi.hoisted(() => vi.fn(async () => {}));
+
+vi.mock("./send.js", () => ({
+  sendMessageZalouser: sendMessageZalouserMock,
+}));
+
+describe("zalouser monitor pairing account scoping", () => {
+  it("scopes DM pairing-store reads and pairing requests to accountId", async () => {
+    const readAllowFromStore = vi.fn(
+      async (_channel: string, _env?: NodeJS.ProcessEnv, accountId?: string) =>
+        accountId === "beta" ? [] : ["attacker"],
+    );
+    const upsertPairingRequest = vi.fn(async () => ({ code: "PAIRME88", created: true }));
+
+    setZalouserRuntime({
+      logging: {
+        shouldLogVerbose: () => false,
+      },
+      channel: {
+        pairing: {
+          readAllowFromStore,
+          upsertPairingRequest,
+          buildPairingReply: vi.fn(() => "pairing reply"),
+        },
+        commands: {
+          shouldComputeCommandAuthorized: vi.fn(() => false),
+          resolveCommandAuthorizedFromAuthorizers: vi.fn(() => false),
+          isControlCommandMessage: vi.fn(() => false),
+        },
+      },
+    } as unknown as PluginRuntime);
+
+    const account: ResolvedZalouserAccount = {
+      accountId: "beta",
+      enabled: true,
+      profile: "beta",
+      authenticated: true,
+      config: {
+        dmPolicy: "pairing",
+        allowFrom: [],
+      },
+    };
+
+    const config: OpenClawConfig = {
+      channels: {
+        zalouser: {
+          accounts: {
+            alpha: { dmPolicy: "pairing", allowFrom: [] },
+            beta: { dmPolicy: "pairing", allowFrom: [] },
+          },
+        },
+      },
+    };
+
+    const message: ZcaMessage = {
+      threadId: "chat-1",
+      msgId: "msg-1",
+      type: 1,
+      content: "hello",
+      timestamp: Math.floor(Date.now() / 1000),
+      metadata: {
+        isGroup: false,
+        fromId: "attacker",
+        senderName: "Attacker",
+      },
+    };
+
+    const runtime: RuntimeEnv = {
+      log: vi.fn(),
+      error: vi.fn(),
+      exit: ((code: number): never => {
+        throw new Error(`exit ${code}`);
+      }) as RuntimeEnv["exit"],
+    };
+
+    await __testing.processMessage({
+      message,
+      account,
+      config,
+      runtime,
+    });
+
+    expect(readAllowFromStore).toHaveBeenCalledWith("zalouser", undefined, "beta");
+    expect(upsertPairingRequest).toHaveBeenCalledWith(
+      expect.objectContaining({
+        channel: "zalouser",
+        id: "attacker",
+        accountId: "beta",
+      }),
+    );
+    expect(sendMessageZalouserMock).toHaveBeenCalled();
+  });
+});