ADAM PULSE Knowledge Base
Cybersecurity · Patch Management · Vulnerability Risk

Microsoft fixed it. Why did companies still get hacked?

By Michael Obraitis, Managing Partner, and Michael Dale, CEO·Published August 12, 2026·Last reviewed August 2026·ADAM Pulse Knowledge Base

The short answer: A software company can discover a vulnerability and release a security update, but that does not automatically protect every organization using the affected technology. Businesses still need to identify affected systems, understand the risk, test the update when necessary, approve the change, deploy it, restart systems if required, verify successful installation, and confirm that the technology is operating normally afterward.

That gap between:

Patch available

and

Patch successfully deployed

is where risk can remain.

The 2017 WannaCry outbreak became one of cybersecurity's clearest examples.

Microsoft published critical security bulletin MS17-010 on March 14, 2017. It addressed six SMBv1 vulnerabilities — five allowing remote code execution and one information disclosure. The widespread WannaCry outbreak followed in May 2017.

The fix existed.

But not every vulnerable system had received it.

That leads to one of the most important lessons in vulnerability management:

> A vendor releasing a patch does not reduce your organization's risk until the organization actually does something with it.

And even then, the job is not complete until the result has been verified.

Why Does a Security Patch Not Protect Everyone Automatically?

Because software vendors do not generally control every system running their products.

Microsoft can release an update.

Cisco can publish new firmware.

A firewall manufacturer can issue a security advisory.

An application developer can publish a corrected version.

But the customer still has to determine:

Do we use the affected product?

Which devices are affected?

Which software version are we running?

Is the vulnerability relevant to our configuration?

How urgent is it?

Can we install the update immediately?

Does it require downtime?

Could it affect another application?

Who is responsible for approving it?

Who will install it?

How will we know whether installation succeeded?

This is why patching is not simply a software problem.

It is an operational process.

What Is Enterprise Patch Management?

NIST defines enterprise patch management as the process of identifying, prioritizing, acquiring, installing, and verifying patches, updates, and upgrades across an organization. NIST also describes patching as a critical part of preventive maintenance and a necessary cost of doing business.

Notice how many steps are included.

Not simply:

Install.

Instead:

Identify

↓

Prioritize

↓

Acquire

↓

Install

↓

Verify

That sequence explains why patch management is fundamentally a business process.

Why Do Companies Fall Behind on Patching?

There is rarely one answer.

Organizations can fall behind for many different reasons.

Some are technical.

Some are operational.

Some are organizational.

Some are financial.

And some simply come down to ownership.

Reason 1: Nobody Knows the System Exists

This may sound impossible.

It is not.

Organizations accumulate technology.

A company may have:

A server may have been created for a project three years ago.

The project ends.

The employee responsible for it leaves.

The application remains online.

Now a vulnerability is announced.

Who knows the server exists?

Who patches it?

That is why vulnerability management begins with asset inventory.

> You cannot patch what you do not know you have.

Reason 2: Nobody Knows Who Owns It

Knowing a system exists is not enough.

Someone has to be responsible for it.

Consider an old application server.

IT says:

“The application team manages it.”

The application team says:

“The vendor manages it.”

The vendor says:

“Operating system maintenance is the customer's responsibility.”

The security team assumes:

“Infrastructure handles patching.”

Everyone thinks someone else is responsible.

The server remains vulnerable.

This is not primarily a technology problem.

It is an ownership problem.

Every Important Technology Asset Should Have an Owner

Ownership does not necessarily mean one person physically operates the equipment.

It means the organization can answer:

Who is responsible for this system?

Who approves maintenance?

Who receives vulnerability notices?

Who coordinates vendor support?

Who decides when it can be taken offline?

Who verifies remediation?

If nobody owns the system, security tasks can easily fall between organizational boundaries.

Reason 3: The Business Is Afraid the Patch Will Break Something

This concern is legitimate.

Updates can occasionally create compatibility problems.

A business may depend on:

The IT team may know a patch exists.

But the business may say:

“We cannot risk taking this application down.”

That creates a real conflict.

Security risk

versus

operational risk.

Patching Is a Business Risk Decision

NIST specifically notes that organizations can experience a divide between business or mission owners and security or technology teams regarding the value and timeliness of patching. It recommends that leadership, business owners, and technology teams jointly create an enterprise strategy for patching.

That is a very important point.

Security cannot simply say:

“Patch everything immediately.”

Operations cannot simply say:

“Never touch the system because it works.”

The organization needs a process for balancing both risks.

What Is the Risk of Installing the Patch?

Possible operational risks include:

Those concerns are real.

But there is another question:

What Is the Risk of Not Installing the Patch?

Possible security risks include:

The decision is therefore not:

Patch risk

versus

no risk.

It is:

Patch risk

versus

vulnerability risk.

Doing nothing is still a decision.

Reason 4: The Organization Has No Emergency Patch Process

Many businesses have a standard maintenance cycle.

For example:

Updates reviewed monthly.

That can work well for routine maintenance.

But what happens when a vulnerability is being actively exploited today?

Waiting three or four weeks may be unacceptable.

Organizations therefore need both:

Routine patching

and

Emergency patching.

NIST's enterprise patch management guidance specifically addresses both routine and emergency patching scenarios.

What Is Emergency Patching?

Emergency patching is an accelerated maintenance process used when vulnerability risk justifies action outside the normal maintenance schedule.

Triggers might include:

The organization should decide before an emergency happens:

Who can approve emergency maintenance?

Who needs to be notified?

What testing is required?

What systems are highest priority?

What rollback process exists?

Without that process, valuable time can be lost debating procedure.

Reason 5: The Vulnerability Is Buried in Thousands of Other Alerts

Modern vulnerability scanners can produce enormous numbers of findings.

Imagine a dashboard showing:

4,728 vulnerabilities.

What does IT patch first?

The temptation can be to focus entirely on severity scores.

But risk requires more context.

A vulnerability becomes more concerning when factors combine:

Known exploitation

plus

internet exposure

plus

critical business system

plus

high privileges

plus

no compensating control.

That may deserve immediate attention.

What Is CISA's Known Exploited Vulnerabilities Catalog?

CISA maintains the Known Exploited Vulnerabilities Catalog, commonly called the KEV Catalog.

The catalog identifies vulnerabilities with evidence of exploitation in real environments.

CISA recommends that organizations use the KEV Catalog as an input to vulnerability management prioritization.

CISA also continues to add vulnerabilities when evidence of active exploitation emerges and strongly encourages organizations outside the federal government to prioritize timely remediation of catalog vulnerabilities.

That gives businesses an important additional question:

Are attackers actually using this vulnerability right now?

Severity Is Important. Exploitation Is More Context.

Imagine two vulnerabilities.

Vulnerability A

Critical rating.

Internal test server.

No public exposure.

Strong segmentation.

No evidence of current exploitation.

Vulnerability B

High rating.

Internet facing VPN appliance.

Known active exploitation.

Provides remote network access.

Which one should receive faster attention?

Probably Vulnerability B.

That is why patching should be driven by risk, not simply by a numerical score.

Reason 6: The System Cannot Easily Be Patched

Some environments contain legacy technology.

Examples can include:

The organization knows the vulnerability exists.

But installing the patch could stop the application from functioning.

What happens then?

What Should a Business Do When It Cannot Patch?

Ignoring the vulnerability is not a strategy.

The organization may need compensating controls such as:

Remove internet exposure.

Restrict firewall access.

Segment the device.

Disable vulnerable services.

Increase monitoring.

Limit authentication sources.

Follow vendor mitigations.

Plan replacement.

These actions may reduce risk while the underlying issue remains.

But there is an important distinction.

Mitigation Is Not the Same as Remediation

Suppose a server contains a software vulnerability.

You block internet access to the server.

That can substantially reduce risk.

But the software vulnerability still exists.

That is:

Mitigation.

Now install the vendor patch that corrects the vulnerability.

That is:

Remediation.

Both can be useful.

But they should not be confused.

A temporary workaround should not quietly become a permanent substitute for fixing the problem.

Reason 7: The Device Is No Longer Supported

This is where patch management becomes lifecycle management.

Every technology eventually reaches the end of vendor support.

At that point, the manufacturer may stop producing security updates.

Now imagine a serious new vulnerability appears.

There may be:

No patch coming.

The equipment may still work perfectly.

But the business now has a security problem.

“It Still Works” Does Not Mean “It Is Still Safe to Operate”

This is particularly important for infrastructure.

A company might have a ten year old:

The device turns on.

Employees use it every day.

Management asks:

“Why replace something that works?”

Because functionality and supportability are different.

A better question is:

> If a critical security vulnerability is discovered tomorrow, will the manufacturer still fix it?

If the answer is no, replacement should already be part of the technology plan.

Reason 8: Updates Require Downtime and Nobody Wants to Schedule It

Many patches require:

Businesses naturally resist downtime.

A restaurant does not want the network restarted during dinner.

A call center does not want phones unavailable during peak hours.

A hospital cannot casually interrupt critical systems.

A manufacturer cannot stop a production line without planning.

So the update is postponed.

Then postponed again.

Then forgotten.

Planned Downtime vs. Unplanned Downtime

This is one of the most important business conversations around patching.

A patch may require:

30 minutes of planned maintenance.

A successful cyberattack may cause:

hours or days of unplanned disruption.

Neither outcome is desirable.

But one can be scheduled, communicated, tested, and controlled.

The other cannot.

Patch management is partly about choosing controlled maintenance before uncontrolled failure chooses for you.

Reason 9: The Patch Was Installed, but Nobody Verified It

This is surprisingly common.

A patch management system says:

Deployment initiated.

IT assumes:

Done.

But some systems may have failed.

Possible reasons include:

That is why NIST's definition of enterprise patch management explicitly includes verification of patch installation.

Deployment is an action.

Verification confirms the outcome.

“Update Sent” Does Not Mean “Update Installed”

That difference deserves attention.

These statements are not equivalent:

Patch approved.

Patch scheduled.

Patch pushed.

Patch downloaded.

Patch installed.

Patch verified.

Only the later stages tell us whether remediation actually occurred.

This leads to another important principle:

> Activity is not the same as outcome.

Reason 10: The Patch Worked, but the Business Service Did Not Recover

Imagine updating a firewall.

The firmware installation reports:

Successful.

Excellent.

But afterward:

Technically:

Patch successful.

Operationally:

Maintenance failed.

This is why patching needs post change validation.

Security Maintenance Should End With Business Validation

After important infrastructure maintenance, ask:

Is the device back online?

Is internet connectivity restored?

Are VPN tunnels established?

Are phones registered?

Are applications reachable?

Are users able to work?

Are monitoring systems receiving data?

The maintenance window should not end simply because the update installer says:

Complete.

It should end when the business service is verified.

This Is Where Monitoring Becomes Part of Patch Management

Consider a company with 100 locations.

At midnight, firewall updates begin.

Without centralized monitoring, engineers may need to manually check every location.

With monitoring, they can identify:

Location 1 online

Location 2 online

Location 3 online

Location 4 offline

Now investigation can focus on the exception.

That is an important operational use of monitoring.

Automation helps answer:

What recovered normally?

and

What needs a human?

Reason 11: Nobody Tracks Exceptions

Sometimes a business deliberately chooses not to patch.

That can be legitimate.

Maybe a vendor has not yet certified the update.

Maybe testing revealed an incompatibility.

Maybe the application is undergoing replacement next month.

The problem begins when the exception is undocumented.

A good exception should answer:

What vulnerability remains?

Why are we delaying remediation?

Who accepted the risk?

What compensating controls exist?

When will the decision be reviewed?

What is the remediation deadline?

Without a review date, temporary risk acceptance can become permanent neglect.

Risk Acceptance Should Expire

Consider an organization that says:

“We accept this vulnerability for 30 days while the vendor completes testing.”

That can be a rational business decision.

Now compare:

“We accepted this vulnerability sometime in 2023.”

Nobody knows who approved it.

Nobody knows whether the reason still applies.

That is dangerous.

Security exceptions should have:

Owner

Reason

Compensating controls

Expiration date

Review process

Risk acceptance should not become a storage location for unresolved problems.

Reason 12: Nobody Connects Security Alerts to Business Priority

A vulnerability scanner may identify an issue on:

SERVER 10.45.33.12

The security team sees:

Critical vulnerability.

But what is SERVER 10.45.33.12?

Maybe it hosts:

Payroll.

Maybe:

Customer ordering.

Maybe:

Nothing important.

Technical findings become more useful when connected with business context.

Organizations should know:

What does the system do?

How critical is it?

Who uses it?

What data does it contain?

Is it internet facing?

What happens if it fails?

Asset management and vulnerability management belong together.

A Vulnerability Without Business Context Is Just a Number

Consider:

CVE identified on server.

Now add:

Publicly exposed

Processes customer payments

Known exploited vulnerability

No MFA

Vendor patch available

The risk becomes much clearer.

Cybersecurity information becomes actionable when technical data is connected with operational context.

Why Small Businesses Struggle With Patch Management

Small businesses often have limited IT resources.

One person may be responsible for:

Patch management competes with everything else.

That does not make vulnerabilities disappear.

It means small businesses need processes that are:

Simple

repeatable

prioritized

automated where appropriate

and

documented.

Does Automatic Updating Solve the Problem?

Automatic updating can greatly improve security for many devices and applications.

But it is not a universal solution.

Some systems may require:

A practical organization may use multiple approaches.

Lower risk systems

Automatic updating.

Business critical systems

Controlled deployment.

Emergency vulnerability

Accelerated change process.

The key is having a strategy.

What Is Patch Tuesday?

Microsoft commonly releases security updates on a regular monthly schedule often referred to as Patch Tuesday.

Scheduled releases help organizations create predictable maintenance processes.

But businesses should not interpret a regular update schedule as:

“We only ever need to think about vulnerabilities once a month.”

Emergency vulnerabilities and out of band updates can occur.

Other manufacturers also follow their own schedules.

Patch management should monitor relevant vendors continuously.

Who Should Monitor Vendor Security Advisories?

Someone should.

That sounds obvious.

But consider a technology environment containing:

Who watches each vendor?

A mature process defines responsibility.

Security information that nobody receives is not useful.

Why Patch Management Is Really Change Management

Every patch changes something.

Good change management considers:

What are we changing?

Why?

What is the risk?

Who approved it?

When will it happen?

How do we recover if it fails?

How do we verify success?

That makes patching part of a broader operational discipline.

What Is a Maintenance Window?

A maintenance window is a planned period during which technology changes can be performed with reduced business impact.

Good maintenance planning may include:

Start time

Expected duration

Systems affected

Business impact

Engineer responsible

Backup verification

Rollback plan

Validation checklist

Escalation contacts

The more critical the technology, the more valuable that structure becomes.

Why Rollback Planning Matters

Suppose a firewall update fails.

What happens?

Do you have:

A change plan should consider failure before failure occurs.

That is not pessimism.

It is operational preparation.

Why Backups Do Not Replace Patching

Some businesses think:

“If ransomware hits us, we have backups.”

Backups are extremely important.

But backups are a recovery control.

Patching is a preventive control.

One does not replace the other.

A strong security program asks:

How do we reduce the chance of compromise?

and

How do we recover if compromise still occurs?

That is layered security.

Why Cyber Insurance Does Not Replace Patching Either

Cyber insurance may help manage financial consequences associated with certain incidents.

But insurance does not:

Insurers may also ask organizations about security practices during underwriting or claims processes.

Insurance is risk transfer.

It is not technical remediation.

What Should Executives Ask About Patching?

Leadership does not need to know every CVE number.

But executives should know whether the organization has a repeatable process.

Ask:

Do we know what technology we have?

Do we know which systems are internet facing?

Who owns patch management?

How quickly do we address actively exploited vulnerabilities?

Do we use CISA KEV in prioritization?

What systems cannot currently be patched?

Why?

Are there compensating controls?

Which systems are approaching end of support?

How much replacement risk is accumulating?

How do we verify patch success?

How do we validate services after maintenance?

These are governance questions.

What Should IT Teams Measure?

Useful metrics could include:

But metrics need context.

A green dashboard does not automatically mean low risk.

Why “99 Percent Patched” Can Still Be Dangerous

Imagine a company has 10,000 devices.

9,900 are current.

That is:

99 percent.

Excellent.

But the remaining 100 include:

internet facing firewalls

VPN gateways

domain controllers

payment servers

Now the missing one percent is extremely important.

Percentages can hide concentration of risk.

The correct question is:

> What is inside the one percent?

Patch Management Should Prioritize Exceptions

Automation makes normal systems easier to manage.

The real operational effort often belongs in the exceptions.

For example:

98 devices patched automatically.

2 devices failed.

The monitoring and ticketing process should focus human attention on those two.

This is a powerful operational principle:

> Automation should handle the expected so people can investigate the unexpected.

Where USA Telecom and ADAM Fit

USA Telecom and ADAM are not replacements for dedicated vulnerability scanners, endpoint management systems, patch deployment platforms, or vendor security services.

The opportunity is in the operational layer surrounding those technologies.

For distributed organizations, important questions include:

Did the device return after maintenance?

Is the location reachable?

Did the firewall reboot?

Did the VPN reestablish?

Did the internet circuit recover?

Did the backup connection activate unexpectedly?

Did voice service return?

Which location is still having trouble?

That is where monitoring turns a maintenance event into a closed loop operational process.

What Is Closed Loop Maintenance?

A closed loop process does not stop at:

Change executed.

It continues:

Change planned

↓

Change executed

↓

System monitored

↓

Service validated

↓

Exceptions investigated

↓

Outcome documented

↓

Monitoring continues

The loop closes when the organization confirms the intended result.

Patch Management and Network Monitoring Should Talk to Each Other

Imagine a firewall disappears at 2:03 AM.

Normally that might create an urgent outage alert.

But monitoring context shows:

Approved firewall maintenance began at 2:00 AM.

Now the event has context.

At 2:07 AM the firewall returns.

VPN tunnels restore.

Location connectivity normalizes.

The maintenance behaved as expected.

Now imagine:

At 2:30 AM:

Firewall still unreachable.

That exception deserves attention.

Context turns monitoring into something more useful than alarms.

The Future of Patch Management Is More Automated, but Still Human Governed

Automation can help:

Inventory

Scan

Prioritize

Deploy

Verify

Alert

Report

Artificial intelligence may increasingly assist with:

Risk correlation

Change analysis

Prioritization

Troubleshooting

But important business decisions remain.

Can we take this system down?

What is the operational impact?

Who accepts the risk if we delay?

Do we replace the system?

When do we escalate?

Technology provides information.

People remain accountable for decisions.

25 Questions Business Leaders Should Ask About Patch Management

1. Do we know every critical technology asset we own?

2. Does every critical asset have an owner?

3. Who receives security advisories?

4. Who decides which patches are urgent?

5. Do we identify internet facing vulnerabilities separately?

6. Do we track CISA Known Exploited Vulnerabilities?

7. What is our normal patch schedule?

8. What is our emergency patch process?

9. Who can authorize emergency maintenance?

10. Which systems require testing before patches are installed?

11. How do we document systems that cannot be patched?

12. Who accepts the associated risk?

13. Do exceptions have expiration dates?

14. What compensating controls exist?

15. Which systems are already unsupported?

16. Which systems will become unsupported in the next 12 months?

17. Is replacement budgeted?

18. Are firewalls included in patch management?

19. Are VPN appliances included?

20. Are routers, cameras, and IoT devices included?

21. How do we know whether updates actually installed?

22. What happens when deployment fails?

23. How do we verify the business service after maintenance?

24. Who receives alerts if a system does not recover?

25. Can leadership see the meaningful exceptions rather than just a patch percentage?

Those questions transform patching from an IT chore into an enterprise risk management process.

The Better Question Is Not “Did the Vendor Release a Patch?”

Ask:

Are we affected?

Where are the affected systems?

Who owns them?

Are they exposed?

Is the vulnerability being exploited?

What is the business impact of patching?

What is the business impact of not patching?

When will remediation occur?

How will we verify success?

What happens if the system does not recover?

That is the difference between knowing a patch exists and managing vulnerability risk.

Key Takeaway

Microsoft published its critical MS17-010 security update on March 14, 2017, before the widespread WannaCry outbreak in May 2017.

That timeline demonstrates a lesson much bigger than WannaCry.

A vendor can:

Find the vulnerability.

Build the fix.

Publish the advisory.

Release the patch.

But the organization still has to:

Know it is affected.

Find every affected system.

Prioritize the risk.

Approve the change.

Test when necessary.

Install the update.

Handle failures.

Verify remediation.

Validate business services.

Track exceptions.

Replace unsupported technology.

That is why patch management is not merely:

“Keeping computers updated.”

It is preventive maintenance, vulnerability management, change management, lifecycle management, and business risk management working together.

NIST makes essentially the same broader point by framing patching as critical preventive maintenance and recommending an enterprise strategy jointly supported by leadership, business owners, and technology teams.

The lesson for business leaders is simple:

> The patch being available is the vendor's job. Making sure your organization is actually protected is yours.

And perhaps the most important operational question is not:

“Did we send the update?”

It is:

“Did we verify the outcome?”

Frequently asked questions

Why do companies still get hacked after a patch is released?

Because releasing a patch does not automatically install it across every affected system. Organizations must identify affected assets, prioritize risk, deploy the update, and verify successful remediation.

What is patch management?

Patch management is the organized process of identifying, prioritizing, acquiring, installing, and verifying patches and updates across an organization's technology environment. NIST treats it as a critical form of preventive technology maintenance.

Why do businesses delay security patches?

Common reasons include compatibility concerns, limited maintenance windows, legacy applications, staffing limitations, vendor restrictions, testing requirements, unclear ownership, and fear of operational disruption.

Is delaying a patch always bad?

Not necessarily. There may be legitimate operational reasons to delay a patch briefly. The risk should be understood, documented, mitigated where possible, and reviewed according to a defined deadline.

What is emergency patching?

Emergency patching is an accelerated process for vulnerabilities that present unusually high or immediate risk, such as vulnerabilities known to be actively exploited.

What is CISA KEV?

CISA's Known Exploited Vulnerabilities Catalog contains vulnerabilities with evidence of exploitation in real environments and is intended to help organizations prioritize vulnerability management.

Should CISA KEV vulnerabilities be patched first?

They should receive heightened attention. CISA strongly encourages organizations to prioritize timely remediation of KEV vulnerabilities.

What happens if a system cannot be patched?

Organizations should evaluate compensating controls such as network segmentation, reduced exposure, disabling vulnerable services, increased monitoring, access restrictions, vendor mitigations, and eventual replacement.

What is a compensating control?

A compensating control reduces risk when the preferred security control cannot immediately be implemented.

What is the difference between mitigation and remediation?

Mitigation reduces risk. Remediation corrects the underlying vulnerability or condition.

Do firewalls need patches?

Yes. Firewalls run software and firmware and can contain vulnerabilities.

Do VPN appliances need updates?

Yes. VPN systems are frequently internet facing and should receive careful vulnerability and lifecycle management.

Can a patch break software?

Potentially. This is why business critical environments may use testing, maintenance windows, backups, and rollback procedures.

Should every patch be installed immediately?

Not necessarily. Organizations should prioritize based on severity, exposure, exploitation, business criticality, and operational risk.

Does automatic updating solve patch management?

Automatic updates can solve part of the problem for appropriate systems but do not eliminate inventory, risk prioritization, testing, lifecycle management, exception handling, and verification.

What happens if an automatic patch fails?

The failure should be detected, documented, investigated, and remediated. Failed deployments should not disappear inside overall compliance percentages.

How do I know whether a patch installed successfully?

Patch management systems, vulnerability scanners, device inventories, software version checks, and other verification methods can confirm installation.

Why is verification important?

Because sending or scheduling an update does not prove that every system successfully installed it.

What is end of life technology?

End of life technology has reached the end of its supported lifecycle and may eventually stop receiving security updates.

Should unsupported equipment be replaced?

Organizations should evaluate replacement or isolation based on risk, especially where security updates are no longer available.

Who owns patch management?

Patch management should have clearly defined technical and business ownership. NIST recommends coordination between leadership, business owners, and security and technology management.

Why does patching need executive involvement?

Patching can affect operational availability, budgets, production, customer service, and business risk. Leadership helps establish priorities, risk tolerance, and accountability.

What is a maintenance window?

A maintenance window is a planned period during which changes and updates can be performed with controlled business impact.

What is a rollback plan?

A rollback plan describes how a system can be returned to its previous operating state if a change creates problems.

Is a vulnerability ticket the same as remediation?

No. A ticket records and manages work. The cybersecurity outcome occurs when the vulnerability is remediated or appropriately mitigated and the result is verified.

Sources

Editorial note

Cybersecurity risk and the controls appropriate to it vary by organization. Evaluate these recommendations against your own technology environment, business requirements, regulatory obligations, threat profile and risk tolerance.

Talk to us about your network security

USA Telecom Consulting LLC is a Service-Disabled Veteran-Owned Small Business running a 24/7 NOC. We monitor networks, circuits and firewalls for regulated and defense-supply-chain organizations.

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