Built by experts. Focused on what comes next.
Big4 Security helps industrial and mission-critical organizations build trust, resilience, and clarity in a world where physical and digital systems are becoming one.
Founded by people with deep technical experience and real operational leadership.
Founded from technical excellence and real-world leadership.
Big4 Security was founded by Denis Laskov and two colleagues with deep experience in cybersecurity, technical leadership, and global organizations.
Their work has always focused on one question - what is the next challenge, and how do we help organizations prepare for it?
Big4 Security was created to bring that mindset into industrial and mission-critical environments where clarity, trust, and continuity matter every day.
Some environments cannot stop.
OT and mission-critical infrastructure were built for reliability, safety, and continuity. They include legacy systems, modern platforms, field devices, vendor equipment, and people with rare operational knowledge. This is where security must support operations - not slow them down.
Reliability first
Industrial environments are measured by continuity, safety, uptime, and the ability to keep essential services running.
Complex by nature
These environments combine legacy technology, modern systems, vendor access, field equipment, and operational processes that cannot simply be paused.
People on the ground
Real resilience depends on engineers, operators, maintenance teams, and local experts who understand how the environment actually works.
The world around these systems has changed.
Digitalization connected industrial environments at a speed few organizations were ready for. At the same time, geopolitics placed green energy, manufacturing, water, food, healthcare, and transportation at the center of national and business resilience. These sectors now matter more than ever - and they need security built for their reality.
More connected
Industrial systems are increasingly connected to business systems, remote support, suppliers, analytics, and global operations.
More exposed
Mission-critical services are now central to business continuity, public trust, and national resilience.
More dependent on trust
Organizations need to know what is connected, what changed, and which devices, systems, and suppliers can be trusted.
Technology with purpose.
Big4 Security brings together a global team of OT, cybersecurity, and mission-critical industry experts. We combine that experience with practical technology, including SecBox, Device Heritage, and GridHound capabilities. Our goal is simple - help teams understand what is connected, what changed, what creates risk, and what action should come next.
SecBox
Local decision support
A local appliance for industrial environments that need evidence collection, environment mapping, change tracking, and practical guidance without depending on cloud connectivity.
Device Heritage
Device and supply-chain intelligence
A way to understand device origin, supplier context, embedded components, firmware exposure, integrity, and operational trust.
GridHound
Visibility and validation layer
Capabilities that support OT visibility, validation, findings management, remediation tracking, and operational security workflows.
Expert teams
Global experience
People with experience across OT, cybersecurity, product security, infrastructure, mission-critical operations, and incident response.
Building a safer and more secure tomorrow.
Our mission is to help industrial and mission-critical teams keep essential environments running with clarity, trust, and confidence. We believe the future will be more connected, more intelligent, and more dependent on trust. Big4 Security exists to help make that future safe, resilient, and secure.
Security should serve operations
The best security approach helps people protect uptime, safety, and continuity.
Trust starts with evidence
Clear decisions begin with understanding what is connected, what changed, and what can be trusted.
The future must be resilient
As physical and digital systems become one, resilience must be designed into the way organizations operate.
Let's build resilience where it matters most.
Whether you operate a factory, infrastructure site, transportation system, healthcare environment, or mission-critical facility, Big4 Security can help you move forward with clarity and confidence.
Big4 Security - industrial resilience, OT security, and device intelligence for the environments that keep the world moving.