Securing Vendor Remote Access

Vendor remote access lets outside companies support your systems without driving to the warehouse. Your WMS provider, conveyor integrator, refrigeration contractor, and ERP consultant may all need to connect. That convenience is valuable, but every connection is also a possible entry point for attackers.

This guide explains the common risks and how to give vendors what they need while keeping control.

Why vendor access is a common weak point

Vendors often support many customers with the same tools. If an attacker compromises a vendor, they may reach every customer that vendor supports. As a result, your security depends partly on theirs.

People also tend to forget vendor accounts. For example, an integrator installs a remote tool during a project and never removes it. Years later, that tool still runs with the same password, long after the project ended.

Finally, some vendors use shared accounts across their whole support team. When that happens, you cannot tell who connected or what they did.

Find every existing connection

You cannot secure access you do not know about. So start with an inventory. Ask each vendor how they connect, and then verify it on your network.

Look for remote support tools installed on servers and workstations. Also check firewalls for open ports and VPN accounts. In addition, look for cellular modems or routers attached to automation equipment, since those can bypass your firewall entirely.

Once you have a list, remove anything that is unused or unknown. Then confirm the remaining connections with each vendor.

Automation and building systems

Conveyor, sortation, refrigeration, and security camera vendors often need access too. Their equipment may sit on your network, yet nobody in the office manages it day to day. That gap makes these systems easy to overlook.

So include facilities and automation vendors in your inventory. Also place their equipment on separate network segments, so a problem with one vendor’s system cannot spread to your WMS or ERP.

Principles for safe vendor remote access

A few principles make vendor connections much safer without blocking legitimate support.

• Named accounts: Each vendor technician gets an individual account, not a shared login.
• MFA on every connection: A stolen password alone should never be enough to get in.
• Least privilege: Vendors reach only the systems they support, not your whole network.
• Time-limited access: Turn access on for a scheduled session, then turn it off afterward.
• Logging and recording: Keep records of who connected, when, and what they changed.

Use one controlled path

Many businesses end up with several remote tools, one for each vendor. That makes it hard to monitor anything. Instead, route vendor connections through one approved method that you control.

That method might be a secure remote access platform, a VPN with MFA, or a Privileged Access Management tool. The key is that your team, not the vendor, controls who gets in. Then you can approve sessions, watch activity, and revoke access quickly.

A vendor access checklist

Use this checklist to review each vendor relationship:

1. List every vendor that connects remotely and the systems they support.
2. Remove remote tools and accounts that no one uses.
3. Require individual accounts with MFA for every vendor technician.
4. Restrict each vendor to the specific systems they support.
5. Enable access only for scheduled work, whenever practical.
6. Review access logs after vendor sessions on critical systems.
7. Recheck the full list at least twice a year.

Set expectations in contracts

Technology controls work best when vendors agree to them up front. So include security terms in vendor agreements. For example, require MFA, individual accounts, and prompt notice if the vendor suffers a security incident.

Also ask vendors how they protect their own systems. You do not need a long audit. However, a few direct questions show whether a vendor takes security seriously.

Finally, have counsel review contract language before you sign. Your cyber insurance carrier may also have expectations about third-party access, so check your policy.

How WEBIT helps

WEBIT helps distributors take control of vendor remote access. We inventory existing connections, remove unused tools, and set up approved access methods. We also work directly with your vendors, so their support continues without interruption.

Our options include Duo MFA, Privileged Access Management, and a password vault for vendor credentials. Learn more about our cybersecurity services, or contact us to review your vendor connections.

Key takeaways

• Vendor connections are a common and often forgotten entry point.
• Inventory every connection, including modems on automation equipment.
• Require named accounts, MFA, least privilege, and logging for vendors.
• Route vendor remote access through one method your team controls.