An attack took down a California city's 911 routing and police and fire dispatch. The city shut down its entire network and declared a state of emergency.
Detecting the threat is only part of the response. You need the ability to cut its access.
01 / PHYSICAL NETWORK CONTROL
When the work ends, the connection shouldn’t stay open.
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Only when needed. Only for as long as needed.
Move from continuous connectivity to approved connection windows, with physical isolation between them, where your operations allow.
A vendor finishes maintenance. A data transfer completes. But the connection remains available. If credentials are stolen or access controls fail, an attacker can use that opening to reach critical systems, disrupt operations, or spread into other connected environments.
Firewalls and access policies are the locks. Security monitoring tools are the cameras. A data diode makes the doorway one-way. Physical isolation removes the doorway between approved uses. Your existing controls stay in place; you gain control over whether the connection exists at all.
Goldilock FireBreak makes connectivity intentional. Connect selected network links only when needed, and only for as long as needed. Between approved uses, those links are physically disconnected.
THE PHYSICAL DIFFERENCE
A policy controls traffic. A physical break removes the path.
Conceptual illustration
Software / logical controls
External system
Access controls
Monitoring
Path remains connected
Critical network segment
24x7 connectivity means 24x7 exposure
Goldilock Layer 1 physical control
External system
Access controls
Monitoring
Physical gapConnected
Critical network segment
Exposure window you control
Physically isolated. The selected path is disconnected.
Explore an approved connection window, then close the connection.
Your access controls and monitoring stay in place. Physical isolation adds control over whether the selected connection exists.
Put physical control to work.
Start with operations.
Identify essential connections and operational dependencies before selecting a segment to isolate.
Design the right boundaries.
Define approved connection windows and how your team authorizes access.
Put control into practice.
Test physical isolation and operational continuity in a scoped pilot before expanding deployment.
AI tools and agents depend on access to your systems and data. Findings from our AI visibility service can inform a separate network assessment to determine where physical isolation fits. Your team decides which controls to put in place; the services do not automatically trigger one another.
See what AI touches. Decide what AI can do. Control what AI can reach.
02 / INFORMED AI CONTROL
Control how your organization adopts and uses AI.
See what’s happening. Decide what comes next.
Use evidence from your environment to set the rules, direct investment, and expand the AI uses that deliver value.
AI use can outpace oversight. Our AI visibility service helps you understand which tools and agents are in use, where sensitive data may be exposed, and where spending needs attention.
We help you use those findings to define sanctioned AI use, set data rules, and assign responsibility. Make adoption and investment decisions based on how your organization actually uses AI.
Start with an AI Visibility Assessment.
See which AI tools are being used, where risks need attention, and where spending can be reduced. Get findings that help you decide what to approve, change, or expand.
60 days · Fixed price · Your findings and data to keep
Usage evidenceLicense utilizationRisk findingsData from
Illustrative assessment findings, not a live product screen. Your assessment reports your own numbers.
Keep governance current.
After the assessment, continue with ongoing managed AI governance. We help you put governance decisions into practice, review new tools, maintain policies, and guide adoption as your needs evolve.
The right controls depend on what you operate, the information you hold, and the people you serve.
Critical Infrastructure
Maintain essential operations while controlling access to critical systems. Design physical isolation around the connections your operations need.
Water · Energy · Ports & Maritime · Healthcare
Government
Govern AI adoption and protect the systems and information public services depend on. Establish clear control over access, use, and accountability.
Federal · State · Local & Municipal
Tribal Nations
Exercise sovereign control over your networks and how AI is used across tribal operations. Assessment data stays in a dedicated environment in the region you choose, and it’s yours to keep. The Tribe decides.
Tribal Government · Healthcare · Utilities · Gaming
Public Safety
Protect the systems and sensitive information that emergency response, investigations, and court operations depend on. Control critical network connections and establish clear rules for AI use, access, and accountability.
Police · First Responders · State DOJs · Courts · AG Offices
ABOUT TANDMM / HOW WE DELIVER
From assessment to working controls.
TANDMM helps organizations build resilience through control of critical networks and AI use. Our experience running federal and healthcare systems grounds our work in the demands of essential operations and sensitive data. We combine physical network control, AI visibility, and governance to reduce exposure and guide adoption while keeping your mission moving.
01
Assess.
Understand your critical systems, network connections, and AI use. Identify exposure, operational dependencies, and priorities for action.
02
Design.
Define where physical isolation fits and how AI should be governed. Build an architecture and implementation plan around your operational needs.
03
Implement.
Deploy and integrate the controls. Validate that network connections, AI policies, and workflows operate as intended.
04
Support.
Keep controls effective as your environment changes, with ongoing technical support and managed AI governance to review usage, risk, and adoption.
People
Evan Lee
Co-Founder & CEO
Evan brings more than 25 years of commercial and federal technology experience, including service as CTO and CIO of the PCAOB, CTO of HHS OIG, and Chief of Solutions Architecture at DHS. He has also helped systems integrators achieve nine-figure growth in federal business.
Bryan brings more than 25 years of healthcare and technology leadership. At TANDMM, he connects customer needs with the company’s services and leads growth and market strategy.
Casey led the Digital Services Center effort at FDA and served as an enterprise architect for the Army’s ServiceNow program. A former CTO for national security at ICF and CTO at Unqork, he has also helped win more than $500 million in contract value.
George served the Pueblo of Pojoaque for more than two decades as Lieutenant Governor and Governor, leading the development of Buffalo Thunder Resort & Casino. His experience spans tribal governance, economic development, and cultural preservation. An accomplished sculptor, his work is held in the Smithsonian’s National Museum of the American Indian.
Quinton DuBose
Advisor, Maritime & Critical Infrastructure
Quinton brings 20 years of U.S. Coast Guard experience in port operations, emergency management, and cyber risk. He advises government and maritime leaders on cybersecurity, incident response, and critical infrastructure resilience.
See physical network control in action, find out how AI is being used across your organization, or start with a conversation about both.
See physical control in action.
Live demonstration · 60 minutes
See how a network connection can be physically disconnected and restored for an approved need. Explore where this fits your operations, with the option of a 30 to 60 day pilot on a selected network segment.
See which AI tools are in use, what they cost, and where risks need attention. Access your assessment data at day 30 and receive findings to guide governance and adoption at the end of the assessment. The findings and data are yours to keep.
After the 60-day assessment, continue with ongoing managed AI governance to review new tools, maintain policies, and guide adoption as your needs evolve.
