---
title: "Inspect device security - VX820 Duet"
url: "https://docs.adyen.com/point-of-sale/user-manuals/terminal-deprecation/vx820-duet-user-manual/inspect-device-security-vx820-duet"
source_url: "https://docs.adyen.com/point-of-sale/user-manuals/terminal-deprecation/vx820-duet-user-manual/inspect-device-security-vx820-duet.md"
canonical: "https://docs.adyen.com/point-of-sale/user-manuals/terminal-deprecation/vx820-duet-user-manual/inspect-device-security-vx820-duet"
last_modified: "2019-04-19T09:31:00+02:00"
language: "en"
---

# Inspect device security - VX820 Duet

[View source](/point-of-sale/user-manuals/terminal-deprecation/vx820-duet-user-manual/inspect-device-security-vx820-duet.md)

Adyen makes use of secure, certified payment terminals. The integrity of these devices is crucial, because they process sensitive card data. Inspect the device to ensure it is secure.

***

Make sure that your staff: 

* Verify the device looks like the pictures in this manual.

* Verify the Adyen logo or your company logo shows up  after turning on the terminal.

* Do not use the device if it is damaged or covered with a sticker.

* Verify the identity of any third-party persons claiming to  be repair or maintenance personnel, before granting them  access to modify or troubleshoot devices.

* Check the device for cameras and skimming equipment regularly.

* Do not install, replace, or return devices without verification.

* Is aware of suspicious behavior around devices (for  example, attempts by unknown persons to unplug or  open devices).

* Report suspicious behavior and indications of device  tampering or substitution to appropriate personnel (for example, to a manager or security officer).

* Do not see customers' PINs when they enter this on a handheld device without a privacy shield.

Perform visual device integrity inspections on a weekly basis. When in doubt, stop using the device and contact our [Support Team](https://ca-test.adyen.com/ca/ca/contactUs/support.shtml?form=other).