Cybersecurity
Protecting your data from cyber threats.
Secure infrastructure. Stable operations. Peace of mind.
Security that delivers. Built for critical systems.
We design, secure and operate mission-critical Linux/Unix environments, modern network infrastructures and battle-tested security controls engineered for reliability, scalability and measurable risk reduction.
Services
A complete catalogue of services focused on Linux/Unix systems, modern networking and practical, operations-driven security. Everything we deliver is designed for production environments — no experiments, no shortcuts.
Network Security
Ensuring secure and stable connections.
Firewall Solutions
Implementing advanced firewall systems.
Cloud Security
Protect your cloud infrastructure and services with advanced security.
Intrusion Detection
Monitor and detect threats in real-time to ensure a secure network.
System Monitoring
Constantly monitor and maintain system health to prevent disruptions.
Networking Solutions
Build and maintain robust network infrastructures tailored to your needs.
VPN Solutions
Secure your online activity with encrypted VPN tunnels.
Server Hosting
High-performance, reliable server hosting for businesses.
Data Encryption
Encrypt sensitive data to ensure privacy and protect against breaches.
Identity & Access Management
Control and monitor user access to critical network resources.
Vulnerability Assessments
Identify and address vulnerabilities before they can be exploited.
Endpoint Security
Ensure devices connected to your network are secure from potential threats.
Network Traffic Analysis
Monitor network traffic and identify potential threats or issues.
Security Awareness Training
Train your staff to recognize and mitigate potential security risks.
Compliance Audits
Ensure your systems and processes meet regulatory and industry standards.
Disaster Recovery
Prepare your business for the unexpected with comprehensive disaster recovery plans.
Penetration Testing
Simulate cyberattacks to test and improve your system's defenses.
Network Segmentation
Dividing your network into segments to reduce the impact of potential breaches.
Threat Intelligence
Gather actionable intelligence to prevent future attacks and mitigate risks.
DDoS Protection
Mitigate Distributed Denial of Service attacks to ensure your network remains accessible.
Zero Trust Security
Implement Zero Trust models to ensure no device or user is trusted by default.
Advanced Threat Protection
Deploy next-gen security solutions to prevent sophisticated cyber-attacks.
Incident Response
Respond to and manage cybersecurity incidents quickly to minimize damage.
Offer & Engagement Models
Flexible, production-ready engagement models designed for different operational and security needs — from fast risk reduction to long-term ownership of critical infrastructure.
Security Kickstart
A short, intensive engagement focused on rapidly improving your security baseline.
- Infrastructure inventory & risk identification
- Baseline hardening & access controls (MFA/SSH/policies)
- Backup & recovery validation (RTO/RPO alignment)
- Action plan with priorities and quick wins
- Infrastructure inventory and threat surface mapping
- Linux/Unix hardening (SSH, users, services, kernel parameters)
- Network exposure review and firewall/VPN validation
- Backup and recovery verification (RTO/RPO alignment)
- Prioritized action plan with quick wins and long-term recommendations
Managed Hosting PRO
Full operational responsibility for production Linux environments.
- Patch management & controlled change process with rollback
- Monitoring, alerting and observability (metrics/logs)
- 3-2-1 backups + periodic restore tests
- Incident response & escalation paths under agreed SLA
- Patch management and controlled changes with rollback
- Monitoring, alerting and centralized logging
- Verified backups and disaster recovery procedures
- Incident response under defined SLA
- Regular health, security and capacity reports
IT Outsourcing & Security Retainer
Long-term partnership focused on stability, scalability and continuous security improvements.
- Operations & development of Linux/Unix and network infrastructure
- Ongoing security reviews, tuning and remediation planning
- Architecture modernization (segmentation, VPN, access model)
- Documentation, runbooks and clear ownership boundaries
- Day-to-day operations of Linux/Unix and network infrastructure
- Ongoing security reviews and architecture improvements
- Network segmentation, VPN and access model evolution
- Documentation, runbooks and change governance
- Direct cooperation with internal teams and management
Security Audit & Compliance
Evidence-driven security and configuration audits with remediation planning.
- Baseline review (OS, services, IAM, network exposure)
- Gap analysis against required controls and policies
- Risk-ranked findings with clear remediation steps
- Audit-ready documentation and executive summary
Network Modernization
Design and execution of secure network changes with minimal downtime.
- Segmentation plan (zones, VLANs/subnets, trust boundaries)
- Firewall policy refactor and rule cleanup
- VPN redesign (site-to-site / remote access) with MFA options
- Change plan with rollback and validation checks
Incident Response On-Call
Fast response for security incidents and outages with clear escalation paths.
- Defined escalation and response procedures
- Containment, triage and root-cause analysis
- Post-incident report and preventive actions
- Optional 24/7 coverage under SLA
What you get in every engagement
Regardless of the model, you receive clear deliverables, traceable changes and documentation that makes your environment maintainable.
Deliverables
- Scope & plan
- Runbooks / procedures
- Change log
- Security and health reports
Operational controls
- Least-privilege access
- Controlled changes + rollback
- Backups + restore tests
- Monitoring + tuned alerting
Visibility
- Metrics and service checks
- Centralized logs (when applicable)
- Incident timeline
- Risk and priority tracking
Why Us
Operational security is more than tools — it’s process, discipline and ownership. We engineer secure systems that remain reliable, observable and maintainable in production.
Engineering-first security
Controls designed for real incidents and real uptime — not checkbox compliance.
- Hardening baselines and drift control
- Explicit access model (least privilege, MFA where possible)
- Segmentation and blast-radius reduction
- Verified backups and recovery readiness
Operational discipline
Repeatable execution with runbooks, change governance and clear documentation.
- Change management with rollback plans
- Runbooks and on-call procedures
- Documentation as a deliverable, not an afterthought
- Standardized configurations across environments
Observability that is actionable
Monitoring and logs tuned for signal, correlation and fast diagnosis.
- Service health checks + SLO-style alerting where applicable
- Centralized logs and audit trails
- Noise reduction via alert tuning
- Incident timelines and root-cause analysis support
Access & identity hygiene
Access is the most common breach path — we treat it as a first-class control.
- Named accounts and key management practices
- Privilege separation and sudo policy design
- Credential rotation and offboarding processes
- Secure remote access via VPN and bastion patterns
Network architecture you can trust
Clean, understandable network design with enforceable trust boundaries.
- Zone-based segmentation and policy enforcement
- Firewall rule cleanup and standardization
- VPN architecture for remote and site-to-site use cases
- Traffic visibility (flows, anomalies, bottlenecks)
Ownership, reporting and transparency
You know what changed, why it changed and how it affects risk and availability.
- Regular health, security and capacity reporting
- Traceable change logs and approvals
- Clear scope, priorities and escalation paths
- Executive summaries with technical depth available on demand
How we deliver
A predictable delivery approach that minimizes risk to production while moving fast with control.
Discovery & inventoryScope, critical services, access model, dependencies and constraints.
Risk reviewThreat surface and priority mapping to focus on the highest-impact changes.
Execution planConcrete tasks, sequencing, maintenance windows and rollback options.
Controlled changesImplementation with validation checks, monitoring and auditable change logs.
Operate & improveContinuous hardening, observability tuning, reporting and architecture evolution.
FAQ
Professional answers to common questions about onboarding, access, SLA, operations, security controls and incident handling.
Engagement & access
How do we start working together?
We begin with a discovery call and a lightweight inventory (systems, roles, criticality). We then run a risk review, agree priorities, and deliver an execution plan with sequencing, maintenance windows and rollback.
What information do you need for a fast estimate?
An inventory (hostname/IP, OS/version, role, environment), current pain points, required SLA and any constraints (change windows, compliance). Even a simple spreadsheet is enough.
Do you sign NDA agreements?
Yes. NDA and strict confidentiality are standard. We can also align on data handling, access boundaries and audit requirements.
How do you handle access to systems?
Least-privilege model: named accounts, SSH keys, MFA where possible, bastion/VPN access, source restrictions and full audit logging. No shared root credentials.
Can you work with our internal team?
Yes. We define clear ownership boundaries (RACI), change procedures and escalation paths. We integrate into your existing ticketing and approval flow if needed.
Which technologies do you support?
Primarily Linux/Unix and common networking stacks. We work with firewalls, VPN, monitoring/logging and standard automation tooling. If your stack is unusual, we assess it during discovery.
Operations, SLA & incidents
Do you provide 24/7 support?
Yes — depending on the agreed SLA and system criticality. We define response times, escalation paths, alert thresholds and communication channels upfront.
What happens during a security incident?
Containment → triage → root-cause analysis → remediation → validation → post-incident report. The report includes timeline, impact, technical findings and preventive actions.
How do you avoid risky changes in production?
We use controlled change management: staged rollouts where possible, pre-change checks, maintenance windows, validation steps, rollback plans and post-change monitoring.
How do you handle patching and updates?
We align patching with risk and uptime requirements. Critical security patches are prioritized; updates are applied with testing/verification and documented change records.
Do you provide reporting?
Yes. Regular health/security/capacity reports plus ad-hoc reports after incidents or major changes. Reporting includes actionable items and risk-ranked recommendations.
How do you price your work?
Depending on engagement: fixed-scope projects (Kickstart/audits), monthly retainer for ongoing operations, or SLA-based managed hosting. We align scope, KPIs and expectations before execution.
Contact
Tell us what you’re dealing with. We’ll respond with a clear assessment and concrete next steps.
Direct
Phone+48 503 956 147
Emailinfo@n-security.com
ModeRemote / hybrid (PL/EU), incl. interventions
Tip: if you have an inventory (hostname/IP, OS, role, criticality) — attach it. It speeds up pricing and planning.
Contact form
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