Property	Type	Description
`deviceId`	String	Device web unique identificator. Use dedicated script to collect it. Example: `5cf65fc6c5db631a47471bb0`. Required only if browser is web.
`fingerprint`	Object	Used for mobile devices. See example and SDKs following. Required only if used on native mobile app.

Web

Add the following script on website:

<script src="https://www.mercadopago.com/v2/security.js" view="checkout"></script>

Mobile

Use the following SDK to get mobile device fingerprint:

Android: https://github.com/mercadopago/px-android

new Device(context);

iOS: https://github.com/mercadopago/px-ios

Device()

Mobile fingerprint example

    "fingerprint": {
     "os": "iOS",
     "system_version": "8.3",
     "ram": 18446744071562067968,
     "disk_space": 498876809216,
     "model": "MacBookPro9,2",
     "free_disk_space": 328918237184,
     "vendor_ids": [
         {
             "name": "vendor_id",
             "value": "C2508642-79CF-44E4-A205-284A4F4DE04C"
         },
         {
             "name": "uuid",
             "value": "AB28738B-8DC2-4EC2-B514-3ACF330482B6"
         }
     ],
     "vendor_specific_attributes": {
         "feature_flash": false,
         "can_make_phone_calls": false,
         "can_send_sms": false,
         "video_camera_available": true,
         "cpu_count": 4,
         "simulator": true,
         "device_languaje": "en",
         "device_idiom": "Phone",
         "platform": "x86_64",
         "device_name": "iPhone Simulator",
         "device_family": 4,
         "retina_display_capable": true,
         "feature_camera": false,
         "device_model": "iPhone Simulator",
         "feature_front_camera": false
     },
     "resolution": "375x667"
    }