Server Intrusion Protection

Cut off ransomware before it gets the foothold it needs

BullWall Server Intrusion Protection detects intruders using stolen credentials and hijacked remote access, traps them before they can reach critical servers, and keeps your defenses intact when it matters most.

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Protecting 1,000+ organisations across 20 countries
Why server intrusion is where ransomware starts

Most ransomware attacks don’t begin with encryption. They begin with access.

149%

Surge in ransomware attacks in the first five weeks of 2025 (Cyble)

44%

Of all data breaches over the last 12 months involved ransomware (Verizon DBIR 2025)

80%

Of successful breaches resulted from zero-day attack methods (BullWall)

5.68m

Average cost of a ransomware breach, not including ransom payments (IBM)
What Server Intrusion Protection does

Catch the attacker before the attack begins

By the time ransomware starts encrypting files, an attacker has often been inside your network for hours. They have used stolen credentials to access a server remotely, disabled your security tools, moved laterally across your infrastructure, and positioned themselves to cause maximum damage. BullWall Server Intrusion Protection closes that window. It detects and traps intruders the moment they attempt unauthorized server access, before they can disable defenses, exfiltrate data, or launch an attack.

Close the credential gap

Detects intruders attempting server access via stolen credentials and hijacked RDP sessions, and traps them before they reach critical infrastructure.

Keep your defenses intact

Prevents attackers from disabling security tools in the early stages of a breach, so your existing stack stays operational when it is needed most.

Stop lateral movement

Blocks lateral movement and command-and-control activity automatically, limiting the attacker's ability to reach high-value systems.

Maintain compliance records

Keeps immutable logs of all server access activity, ready for compliance audits, insurance requirements, and internal investigation.

Built for every stage

The full set of tools your team needs to stay ahead of an intrusion.

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Credential abuse detection

Identifies and traps intruders attempting server access via stolen credentials before they can reach critical infrastructure.

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RDP and remote access security

Secures remote desktop and other remote access methods, closing one of the most common ransomware entry points.

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Security tool protection

Prevents attackers from disabling your existing security stack in the early stages of a breach, keeping defenses operational.

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Lateral movement blocking

Automatically blocks lateral movement and command-and-control activity, limiting the attacker's reach across the network.

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Automated 24/7 remediation

Detects and responds to early compromise indicators around the clock, without requiring a team member to be at a keyboard.

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Immutable access logging

Maintains detailed, tamper-proof records of all server access activity for compliance, insurance, and forensic investigation.

Industries we serve

Ransomware hits every industry differently. BullWall protects every industry regardless.

Financial Services

Where a ransomware attack is a regulatory event, not just an IT incident.

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Regulators are moving from intent to proof
BullWall generates audit-ready containment evidence mapped directly to DORA, FCA, and other cyber compliance requirements.
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Boards carry personal liability for security failures
BullWall gives you documented, evidence-backed answers before the question is asked.
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Legacy core banking infrastructure cannot be rearchitected
BullWall deploys agentlessly on the systems you already run, with no disruption to critical operations.
Results
80% Faster
Launch of project

Manufacturing

Where ransomware crossing from IT into OT can stop production in minutes.

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Attackers find the paths defenders did not cover
BullWall monitors file systems and OT-adjacent servers at the data layer, regardless of how the attacker entered.
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Every minute of production downtime carries a direct financial cost
BullWall contains the threat before it reaches the production floor, measuring response in seconds.
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NIS2 creates personal management liability for ransomware incidents
BullWall generates the documented evidence trail that demonstrates due diligence at board level.
Results
80% Faster
Launch of project

Pharma

Where ransomware hitting a validated system triggers a regulatory event, not just downtime.

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GxP-validated systems cannot be patched without re-validation, leaving them permanently exposed
BullWall contains ransomware at the file system level without touching validated application states.
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A breach affecting manufacturing data risks batch recalls and mandatory MHRA notification
BullWall stops encryption before it reaches critical data, preventing the regulatory chain reaction.
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Compensating controls need to be documented and tested, not assumed
BullWall continuously validates that controls are functioning and generates inspection-ready evidence between audits.
Results
80% Faster
Launch of project

Public Sector

Where legacy infrastructure, small teams, and public accountability make ransomware especially damaging.

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Legacy estates can't be patched, but compliance expects demonstrable controls
BullWall protects unmanaged infrastructure without solving the underlying problem first.
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Small teams can't manually respond across multiple sites at any hour
BullWall's automated containment makes a team of three as effective as a team of thirty.
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After every peer incident, leadership asks what's been done
BullWall is a deployed, documented control you can point to directly, not a roadmap.
Results
80% Faster
Launch of project
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Works with your existing stack

Integrated with the tools your team already uses.

BullWall deploys agentlessly on a single VM and connects to your existing SIEM, EDR, NAC, and SOC platforms via RESTful APIs. No rip and replace. No endpoint software rollout. Fully operational in days.
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testimonials

Hear it from the organizations that didn't wait for an attack to happen

"I experienced an attack where a cybercriminal used a valid user account to get in remotely. You can't prevent that. You need a ransomware containment solution like BullWall."

Sharn Somerton-Davies
IT Manager, Sir Roger Manwood's School

"This was one of the easiest setups of all time. We just needed a standard Windows server, and BullWall engineers had it configured in 20 minutes."

John Hyland
Director of Information Technology, Town of North Andover

"BullWall gave us exactly what we were looking for. A way to contain ransomware attacks before they spiral out of control and cause significant damage. It's a game changer for us and our customers."

Bob Lamendola
Chief Digital Services & Delivery Officer, Ricoh

"You can't guarantee 100 % protection. But we felt that BullWall was unique in that if everything else fails, this was the catch-all last line of defence protecting our data."

Mark Bleazard
Digital Services Manager, Newport City Council

"We can't employ enough people to sit there looking at all of this. We've got to automate our response time, our responses, and our monitoring of our system."

Gil Mara
Chief Educational Technology and Information Services Officer, Torrance Unified School District
Talk to an expert

See exactly what server intrusion protection looks like on your infrastructure

Every organization's exposure is different. Book a demo and we will walk you through how BullWall detects and traps intruders attempting unauthorized server access, and what the evidence trail looks like for your compliance requirements.

FAQ

What security teams ask us most