October is Cybersecurity Awareness Month, a timely reminder that cyber risk does not stop at your company’s front door. Businesses increasingly depend on outside vendors for payroll, accounting, cloud software, managed IT, payment processing, building systems, marketing, and other daily operations. Every connection can make work easier, but forgotten or overly broad vendor access can also create an opening that deserves attention.
For 2026, CISA is encouraging organizations to strengthen foundational cyber practices and to prepare for disruption. One practical place to start is reviewing who outside your organization can still access your systems, data, or accounts.
Why Third-Party Access Deserves a Fresh Look
Vendor access is often created for a legitimate reason and then quietly remains in place. A consultant may finish a project. An IT provider may change technicians. A software integration may no longer be used. Yet the account, remote connection, API permission, or administrative role can remain active long after the original need has passed.
That creates a simple business question: if a vendor account were compromised today, what could it reach? Cybersecurity Awareness Month is a good opportunity to answer that question before an incident forces the issue.
A Common Claims Scenario: The Trusted Vendor Account
Consider a business that allows a third-party service provider to remotely access a system for support. Months later, attackers obtain the vendor’s credentials and use that trusted access to enter the business environment. The company may face forensic investigation costs, system restoration expenses, business interruption, legal review, notification obligations, or fraud losses depending on what happened.
The important lesson is that “third party” does not mean “someone else’s problem.” Operationally, the event can still affect your customers, employees, finances, and ability to conduct business.
Five Vendor-Access Questions Businesses Should Ask
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Who currently has access?
Create an inventory of outside organizations with access to email, financial systems, cloud applications, networks, remote support tools, customer information, or operational technology.
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Does each vendor still need that access?
Remove accounts and connections tied to completed projects, former vendors, or services no longer in use.
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How much access is being provided?
Review whether vendors have broad administrative permissions when a narrower role could support the work they perform.
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What login protections are in place?
CISA identifies strong passwords, multifactor authentication, software updates, logging, backups, encryption, and incident planning among actions organizations can use to strengthen cyber defenses.
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What happens when the vendor relationship ends?
Build access removal into offboarding so credentials, permissions, integrations, and remote connections are addressed as part of closing the relationship.
Do Not Overlook the Insurance Side
Cyber insurance can include several coverage components that may become relevant after a third-party cyber event, but policy wording varies. Businesses should review how their policy addresses dependent business interruption, data restoration, breach response, cybercrime or funds transfer fraud, system failures, waiting periods, sublimits, and exclusions. It is also worth understanding whether a vendor’s cyber event must meet specific conditions before coverage may apply.
Vendor contracts also matter. Insurance requirements, indemnification language, notification responsibilities, data handling obligations, and incident-response expectations can affect how a loss unfolds. Those contractual provisions should be reviewed with appropriate legal and insurance resources.
Cyber Awareness Month Action Step
Pick one practical goal for October: identify every third party with technical or data access and assign an owner inside your business to review it. That one exercise can expose forgotten accounts, excessive permissions, outdated connections, and unclear responsibilities. It can also create a useful starting point for conversations with your IT provider and insurance advisor.
FAQ
Is vendor access really a cybersecurity issue for small and midsized businesses?
Yes. Outside providers may connect to important business systems or handle sensitive information. The level of risk depends on what the vendor can access, how that access is secured, and how quickly it can be removed or restricted when needed.
Does cyber insurance cover an incident caused by a vendor?
It may, depending on the policy, the type of incident, the affected systems or services, and applicable terms, conditions, exclusions, limits, sublimits, and endorsements. Businesses should review their specific policy rather than assume a vendor-related event is covered.
How often should vendor access be reviewed?
A practical approach is to review access periodically and whenever a vendor relationship, project, employee, system, or contract changes. Higher-risk access may warrant more frequent review based on the organization’s circumstances.
Talk to Atlas Insurance About Cyber Risk
Cybersecurity Awareness Month is a useful time to look beyond phishing emails and passwords and examine the outside connections your business depends on every day. Atlas Insurance can help business owners review cyber insurance considerations alongside the operational risks created by vendors, technology, data, and digital workflows.
Contact Atlas Insurance to discuss how your current cyber insurance program addresses third-party incidents and where policy terms may deserve a closer look.
Atlas Insurance Disclaimer: This material is provided for general informational and educational purposes and is not legal, cybersecurity, or coverage advice. Insurance coverage is subject to the specific terms, conditions, exclusions, limits, endorsements, and underwriting requirements of the applicable policy and carrier. Coverage availability and terms vary by insurer and individual risk. Please review your policy and consult appropriate insurance, legal, and technology resources regarding your specific circumstances.
Sources
CISA, Cybersecurity Awareness Month 2026: foundational practices for businesses, including phishing awareness, strong passwords, multifactor authentication, software updates, logging, backups, encryption, incident response planning, and disruption preparedness.
