Fix title casing and enhance device management content

Corrected title casing and updated device management instructions.

Author: stephanieelliott

docs/articles/new-expensify/settings/Manage-Devices.md

@@ -0,0 +1,72 @@
+---
+title: Manage Logged-in Devices
+description: View signed-in devices and revoke device access for your Expensify account.
+keywords: [manage devices, revoke device access. log out remotely, revoke logged-in device, signed in devices, account security, New Expensify]
+internalScope: Audience is all Expensify members. Covers viewing and revoking signed-in device sessions in New Expensify. Does not cover two-factor authentication, account lock, or SAML/SSO configuration.
+---
+
+# Manage Logged-in Devices
+
+You can view all devices currently signed in to your Expensify account and revoke access for devices you no longer trust. This is useful if you lose a device, notice suspicious account activity, or want to remove old login sessions.
+
+
+---
+
+## Who can manage devices
+
+All Expensify members can view and revoke device access for their own account sessions.
+
+This feature is not available on mobile.
+
+---
+
+## How to view and revoke logged-in devices in Device management
+
+1. In the navigation tabs on the left, click **Account**.
+2. Click **Security**.
+3. Click **Device management**.
+4. Review the list of devices that have access to your account. Each entry shows the device name, operating system, and when it was last active.
+5. To remove a device, click **Revoke** next to it.
+
+Each listed device represents an active login session on your account. Devices may appear multiple times if you signed in using different browsers, apps, or devices.
+
+---
+
+<!-- SCREENSHOT:
+Account > Security > Device Management with a list of devices 
+Design request:https://github.com/Expensify/Expensify/issues/637256
+-->
+
+---
+
+---
+
+## What happens after you revoke device access
+
+The selected device is immediately signed out of your Expensify account. Anyone using that device must sign in again to restore access.
+
+Revoking a device does not:
+- Reset your password
+- Sign out other active devices
+- Enable two-factor authentication
+- Remove access from devices that were not revoked
+
+---
+
+# FAQ
+
+## Can I revoke access to a lost or stolen device?
+
+Yes. Open **Device management**, find the device you want to remove, and click **Revoke** to sign that device out remotely.
+
+## Why do I see multiple devices listed?
+
+Each browser, mobile app, or device creates a separate login session. You may see multiple entries if you signed in from different locations or browsers.
+
+## Can I revoke all devices at once?
+
+No, devices must be revoked individually.
+
+## What information can I see for each device?
+
+The device list shows the device name, operating system or browser, and the last time the device accessed your account.