Use proven foundations.
OPNsense-style routing, Linux servers, WireGuard, ClamAV, secure fileservers, monitoring agents, and scriptable backups can solve real problems when they are deployed with discipline.
About Elisk
Practical cybersecurity engineering for businesses that need protection they can trust.
Elisk is a security-focused IT engineering company based in Braga, Portugal, with engineering work distributed across Portugal. We help small and growing businesses protect infrastructure, networks, websites, operational systems, and the data their business and customers depend on.
We exist because accessible security matters. Most businesses do not need enterprise-scale platforms to become materially safer, but basic antivirus, default routers, unmanaged websites, and improvised backups are not enough protection for a digital business.
Talk to Elisk
Simple, effective, accessible, trustworthy
Why Elisk exists
Small businesses are digital businesses now.
PCs, smartphones, websites, cloud services, remote access, customer data, payment flows, email, and backups are now part of normal business operations. That also means ransomware, weak networks, exposed services, vulnerable websites, and unclear recovery plans are no longer distant enterprise problems.
Our work is to make proven technology accessible without forcing every client to become a security engineer. We design the control set that fits the risk, explain the tradeoffs, implement what matters, and leave systems that can be understood and maintained.
Practical security
Protection should match the business.
NetworksControlled routing, isolation, and safe remote access
SystemsHardened Linux servers, services, and file storage
VisibilityMonitoring for the signals that actually matter
RecoveryOffsite backups, restore checks, and RTO/RPO goals
ReadinessSecurity controls that support GDPR and NIS2 duties
How we work
Understandable systems over security theater.
We prefer clear architecture, open-source tooling where it fits, and controls that can be explained to the people who depend on them. Good security is not about buying the largest platform available. It is about reducing exposure, controlling access, detecting meaningful change, and knowing how to recover.
Avoid oversized answers.
We do not push complex frameworks when a smaller, maintainable set of controls will reduce the actual exposure faster and more clearly.
Security should not require heroics.
Remote access, backups, monitoring, and network policy should be reliable enough for daily operations, not mysterious systems nobody wants to touch.
Readiness needs proof.
Logs, alerts, ownership, recovery checks, and documented decisions make it easier to explain security posture to clients, suppliers, insurers, and regulators.
Protect
Reduce exposed attack surface, isolate networks, secure public services, and harden infrastructure.
Monitor
Collect meaningful telemetry, endpoint posture, software inventory, alerts, and network visibility.
Intervene
Contain incidents, preserve evidence, support recovery, and communicate clearly when something breaks.
Recover
Keep offsite encrypted backups, restore checks, infrastructure as code, and clear RTO/RPO goals ready.
We are our own clients
Our products come from systems we needed ourselves.
We build products when a real operational need keeps repeating. The goal is to turn the security practices we rely on into tools that other businesses can use without needing our small team to be involved in every environment.
Overseer
Born from the need to monitor Elisk's own cloud and on-prem systems with account-scoped visibility.
Monitoring
Vault
Born from backup, contract, and sensitive-data storage discipline: encrypted, timestamped, and restorable.
Recovery
Gateway
Born from the need for secure networks on premise and in the field, with controlled edges and visibility.
Network edge
Peace of mind through engineering
Protect the digital systems your business depends on.
Tell us what you operate, what is exposed, and what needs to survive. We will start with the practical controls that make your business safer before an incident happens.