Moving Beyond Filtering to True Threat Prevention

The concept of “PreCrime,” popularized by science fiction, depicts a future where threats are stopped before they are committed. What if, instead of eacting to a breach after the damage is done, we could architecturally prevent the attack from ever succeeding?
This is not science fiction. This is the mission of Excalibur.

A Battle Fought on the Wrong Front

For decades, the cybersecurity industry has been locked in a reactive, vicious cycle that defines the status quo. This is the endless patch treadmill: A vulnerability is discovered by attackers. An exploit is developed. A breach occurs. Only then do security teams scramble to patch, update, and recover. By the time the defense arrives, the damage is already done. This model is fundamentally flawed. This constant race against time, a race that is nearly impossible to win, is why the statistics are so grim. In 2024, a staggering 3.2 billion credentials were stolen (Flashpoint 2025 Global Threat Intelligence Report), and 86 % of all breaches involved compromised identities (Verizon, DBIR 2023).

The industry has focused on building better filters and taller walls while attackers simply walk through the front door with stolen keys. We are fighting the wrong battle.

The New Doctrine: Isolation, Not Filtration

At Excalibur, we believe the only way to win is to change the game. The core
principle is simple but profound: stop filtering threats and start isolating them.
A filter, like a WAF or an email gateway, inspects traffic and makes a judgment
call—a guess that can be wrong. Isolation is an architectural guarantee. It ensures that no traffic, malicious or otherwise, ever makes direct contact with your critical assets.

Our core technology, Streamed Access Management – SAM, is the universal
platform that delivers this isolation for every user and every application. It is the single fabric for all secure access, replacing the patchwork of legacy tools like VPNs, VDIs, and traditional PAMs.

Access begins not with a password, but with a secure identity, verified by our
passwordless, phone-centric Multi-Factor Authentication (MFA). From there,
SAM manages access to all interactive protocols—RDP, SSH, VNC, HTTP and
more—by creating a true digital “air-gap.”

VITRO: The Specialized Engine for Web Targets

For the most common and vulnerable target, web targets, SAM utilizes a
revolutionary technology: VITRO.
VITRO is our proprietary Remote Browser Isolation (RBI) engine, engineered to be lag-free, visually lossless, and massively scalable. This breakthrough in performance unlocks two transformative capabilities:

• The First True RBI-Based WAF: VITRO’s efficiency makes it possible to isolate not just the user, but the web application itself. It acts as a shield, ensuring no malicious traffic or exploit attempts can ever reach the web server, effectively replacing traditional WAFs with a model of perfect isolation.
• The Foundation for VITRO AI: Unlike pixel-streaming technologies, VITRO streams a textual representation of the web session. This textual stream is the key that unlocks VITRO AI: the ability to apply Large Language Models (LLMs) for real-time analysis of user activity, detecting anomalies and malicious intent as they happen. This is the “PreCrime” engine.

The Architectural Consequences

This holistic approach of isolating all access through SAM, supercharged by VITRO
for web targets, has profound implications for your security posture:

• Endpoint Security Becomes Irrelevant: If a user’s device is infected with
  malware, there is no network path for it to spread to your infrastructure. The
  endpoint is neutralized as a threat vector.
• Ransomware is Architecturally Contained: With a properly segmented
  network built around this isolation principle, lateral movement is impossible.
  Ransomware cannot propagate.
• True Prevention, Not Just Detection: The “4 Eyes & Human in the Loop”
  principle, powered by VITRO AI and reinforced with Peer Verification, allows
  threats to be identified and escalated for human validation before any
  malicious payload can be delivered.

The Disruption: Inverting the Economics of Cyber Warfare

The impact of this universal approach is transformative. It breaks the vicious cycle of reactive defense by shifting the economic balance of power decisively back to the defender. By making the cost of an attack extremely high and the likelihood of success vanishingly low, we make attacking your organization a fundamentally unprofitable venture.

Proven, Trusted, and Architected for Your World

Established in Slovakia in 2016, Excalibur is an innovation-driven company trusted by leading institutions, including the National Bank of Slovakia and the Slovak Government (GovCloud).
The GovCloud deployment is the blueprint for modern security service delivery. In this model, the Ministry of Interior operates our platform as a central service for over 200 distinct government organizations. Each is a secure, isolated tenant, demonstrating the platform’s power to enable secure, multi-tenant operations at scale.
A platform this powerful, however, is an architectural cornerstone, not a standalone magic box. Its security guarantee is only absolute when implemented correctly. If users can “walk around” the platform and make direct connections, the air-gap is ncompromised. This is why expert implementation is paramount.

Our mission is to empower our partners, the integrators, distributors, and SOCs, to become the architects of these unbreachable environments.
Born and built in the European Union, our platform is architected for the ultimate nflexibility that modern enterprises and service providers demand. It can be deployed:

• On-Premise for complete data control.
• In a Private or Public Cloud of your choice.
• As a fully managed service delivered by a trusted partner.

The Future of Access is a Solved Problem

The story of King Arthur’s sword, Excalibur, tells of a weapon that could only be wielded by the rightful king. We see a parallel in modern security: only the right, authenticated user should be granted access to any resource in the digital kingdom.

Our mission is to make complex cybersecurity smarter, stronger, and simpler. We are stopping threats before they happen by moving beyond reaction and focusing on ntrue, architectural prevention for all users and all applications.
Whether you are securing your own organization or delivering security as a service, nthe architecture of the future is here. Let’s talk at NTK 2025 or connect with us at: https://www.getexcalibur.com/.