Network Security • Precision Logics Insights
Remote access has a legitimate place in a small-business network. Employees may need to reach business systems while working away from the office. An IT provider may need controlled access to troubleshoot a server or network device. A specialized vendor may support a system that cannot be maintained entirely on-site.
Remote access has a legitimate place in a small-business network.
Employees may need to reach business systems while working away from the office. An IT provider may need controlled access to troubleshoot a server or network device. A specialized vendor may support a system that cannot be maintained entirely on-site.
The risk is not simply that remote access exists. The risk appears when nobody can answer basic questions about it:
On August 21, 2026, the Cybersecurity and Infrastructure Security Agency revised its Internet Exposure Reduction Guidance. CISA's central advice is straightforward: identify systems accessible from the internet, remove exposure that is unnecessary, and secure access that must remain.
For a small business, this is a manageable place to begin reducing risk.
An internet-exposed system is any service, device, or administrative interface that can be reached from outside the organization's private network.
Common examples can include:
Some of these connections may be necessary. Others may have been created for a short-term project and never removed. An old account or forgotten management page can remain available long after its original purpose has ended.
The objective is not to eliminate useful remote access. It is to make each path deliberate, documented, and appropriately protected.
A business cannot review exposure it does not know exists.
Begin by listing systems and services that are intended to accept connections from outside the local network. Include the obvious entries, such as the company VPN, but do not stop there.
Ask whether employees, contractors, equipment vendors, software providers, or IT support organizations have remote access. Review whether any cellular modem, secondary internet connection, temporary firewall rule, or remote-support application provides another way into a business system.
For each item, document:
This does not need to begin as a complicated database. A controlled spreadsheet or written system inventory is better than relying on memory.
Every internet-facing service should have a current operational reason.
Useful questions include:
If a service no longer has a documented need, remove or disable it.
If it is required only occasionally, consider restricting when or where it can be used. The appropriate method depends on the system and business requirements, but the decision should be intentional.
Necessary exposure still needs protection.
An internet-facing firewall, VPN gateway, server, or management interface is accessible to more than the people the business expects to use it. Attackers routinely search for systems running outdated or vulnerable software.
CISA's August 10 Gunra ransomware advisory described attackers exploiting known vulnerabilities in internet-facing devices, including firewall and VPN appliances. The practical lesson is broader than one ransomware family: systems at the network edge require prompt, verified maintenance.
Confirm that:
Shared remote-access accounts make it difficult to determine who connected or to remove one person's access without affecting everyone else.
Where the system supports it, give each authorized person an individual account. Remove accounts promptly after employment, vendor, or project changes.
Do not leave default credentials in place. Avoid keeping unused accounts "just in case."
A password alone can be stolen, reused, guessed, or exposed through phishing.
Multifactor authentication adds another requirement before access is granted. CISA specifically recommends enforcing MFA where possible for systems that must remain internet-accessible.
MFA is not a substitute for patching, account cleanup, or monitoring. It is an additional layer that can make a stolen password less useful.
Not every remote service needs to accept connection attempts from everywhere on the internet.
Depending on operational needs and system capabilities, access may be restricted to approved networks, devices, gateways, or managed remote-access paths. Administrative interfaces should not be publicly reachable merely because that was the easiest initial configuration.
Any restriction needs to account for legitimate travel, remote work, support, and emergency requirements. The correct design is the one that supports the business while avoiding unnecessary exposure.
Logging is valuable only if it records useful information and someone knows where to find it.
For required remote access, determine whether the business can review:
Not every unexpected event means a compromise occurred. It means the event deserves context and, when appropriate, investigation.
A vendor or service provider may maintain its own connection to a business system. That access is still part of the business's exposure.
Ask each provider:
A vendor relationship does not remove the business's need to understand how its systems can be reached.
CISA notes that an open port does not necessarily indicate a vulnerability or compromise.
A reachable service may be operating exactly as designed. The important questions are whether the exposure is necessary, supported, patched, authenticated, monitored, and documented.
Avoid treating a scan result as an automatic emergency. Verify what system is responding, identify its owner and purpose, and then decide whether to keep, restrict, repair, or remove the exposure.
Technical scanning should be conducted carefully and within authorized scope. A qualified review can help distinguish an intended service from a configuration mistake without disrupting business operations.
Internet exposure changes over time.
A new project may create temporary access. A vendor may install a support connection. Equipment may be replaced while an older interface remains online. A firewall rule may outlive the application it supported.
Review internet-facing systems:
A quarterly review is a reasonable starting point for many small environments, but the right frequency depends on how often the network changes and how critical the exposed systems are.
A small business can begin with these actions:
The result should be simple: every internet-facing path has a reason, an owner, and appropriate protection.
Remote access can improve productivity and make support faster. It should not exist simply because nobody remembers why it was created.
A clear inventory and routine review help a business preserve useful access while reducing forgotten entry points. That is practical risk reduction: know what is reachable, remove what is unnecessary, and secure what the business needs to keep.
Precision Logics LLC provides practical network, server, remote-access, and small-business IT support in southeast North Dakota, nearby areas, and for suitable remote clients.
To discuss an internet-exposure or remote-access review, contact jeremiah@precisionlogics.com, call (888) 561-2468, or use the Request Help form on the Precision Logics website.
Precision Logics can help review your systems, identify unnecessary exposure, and implement appropriate protections.
