If cybersecurity tools are supposed to stop attacks, why is the government now telling organizations to prepare for operating without internet, communications, or connected systems?
That is exactly the warning coming from the U.S. Cybersecurity and Infrastructure Security Agency, or CISA. In a recent initiative called “CI Fortify,” CISA urged critical infrastructure organizations to prepare for cyber incidents severe enough to disconnect them from telecommunications, vendors, cloud services, and business networks.
This is not just about preventing attacks anymore.
It is about surviving them.
According to a recent Federal News Network report, CISA launched the CI Fortify initiative to help critical infrastructure organizations prepare for large-scale cyber disruptions tied to geopolitical conflicts and nation-state attacks.
The guidance focuses on two key concepts:
CISA is advising organizations to proactively disconnect operational systems from vulnerable third-party networks and prepare to continue essential operations even during prolonged outages.
That is a major shift in cybersecurity thinking.
For years, many organizations assumed cybersecurity meant detecting threats quickly and responding before damage spread. But CISA’s latest guidance reflects a growing reality:
Attackers are already inside many environments before anyone notices.
CISA’s concern is rooted in the growing sophistication of nation-state cyber operations and ransomware groups targeting operational technology, critical infrastructure, and supply chains.
The agency specifically warned organizations to assume that third-party services, communications providers, and connected systems may become unavailable during a major cyber event.
That means businesses may suddenly lose access to:
For many organizations, even a few hours of downtime can create major disruption.
For critical infrastructure providers, healthcare organizations, manufacturers, logistics firms, utilities, and financial institutions, the impact can be far worse.
Even if your company is not classified as critical infrastructure, the risks described by CISA affect almost every modern business.
Today’s organizations rely heavily on interconnected systems, vendors, cloud services, and remote access technologies. Attackers know this.
Modern cyberattacks are designed to spread quickly across connected environments while disabling visibility and response tools.
The business consequences can include:
According to the IBM Cost of a Data Breach Report, the global average cost of a data breach reached $4.88 million in 2024. IBM also found that business disruption and post-breach response costs continue to rise significantly.
Meanwhile, the Verizon Data Breach Investigations Report found that ransomware and credential abuse remain among the most common attack methods impacting organizations worldwide.
The pattern is becoming clear.
Attackers are not just stealing data anymore. They are targeting operations.
This is one of the most important questions business leaders should be asking.
Many organizations still rely heavily on a “Detect and Respond” model centered around EDR, monitoring, alerts, and post-compromise investigation.
The problem is that modern attackers increasingly bypass those tools.
CISA and industry experts continue warning about threats involving:
Some attackers intentionally use legitimate administrative tools already present inside environments to avoid triggering alerts.
Others disable or evade security software entirely.
CISA’s own guidance emphasizes resilience and containment because organizations can no longer assume prevention will always happen at the perimeter.
The challenge is speed.
Modern ransomware campaigns can encrypt systems and spread laterally faster than many security teams can respond.
Yes.
EDR platforms provide visibility and detection capabilities, but they still depend heavily on identifying malicious behavior after execution begins.
That creates a dangerous timing problem.
If attackers gain valid credentials, abuse trusted tools, or exploit legitimate administrative processes, detection may happen too late to prevent operational disruption.
CISA has repeatedly warned organizations about vulnerabilities involving network devices, remote access systems, unsupported infrastructure, and operational technology environments.
In several federal advisories, the agency highlighted how attackers continue exploiting outdated systems, remote management platforms, and operational technologies to gain footholds inside critical environments.
The reality is simple:
Detection matters, but containment matters more.
This is where many organizations are rethinking cybersecurity strategy.
Instead of relying primarily on detecting malicious activity after execution, more security leaders are focusing on prevention-first security models centered on Isolation and Containment.
The goal is to stop unauthorized activity before it executes or spreads.
That includes:
This approach aligns closely with the resilience-focused guidance CISA is now emphasizing through CI Fortify.
One example is AppGuard, a proven endpoint protection solution with a 10-year track record focused on prevention through Isolation and Containment.
Rather than depending entirely on identifying malicious files or behaviors after execution, prevention-first approaches work to block unauthorized activity before damage occurs.
That shift is becoming increasingly important as organizations face faster, stealthier, and more disruptive attacks.
CISA’s guidance makes one thing very clear:
Organizations must prepare for the possibility that attacks will succeed in some form.
That does not mean cybersecurity has failed.
It means resilience has become just as important as detection.
The ability to isolate systems, continue essential operations, and contain attacks quickly may determine whether a company experiences a manageable disruption or a catastrophic business event.
This is especially true as geopolitical cyber threats continue to increase.
CISA’s guidance specifically references scenarios where organizations may need to operate in isolation for extended periods while recovering systems safely.
That requires planning long before an attack occurs.
Business leaders should treat CISA’s warning as a call to strengthen operational resilience now, not after an incident.
Practical steps include:
Cybersecurity is no longer just about keeping attackers out.
It is about keeping the business operational when attacks happen.
The organizations that adapt fastest to this reality will be far better positioned to withstand the next wave of cyber threats.
Business owners who want to better understand how prevention-first security can stop attacks before damage occurs should talk with CHIPS about how AppGuard can help prevent incidents like this through Isolation and Containment.
Like this article? Please share it with others!