Security engineering

We protect web platforms from real attackers, and keep them protected.

Multilayer protection, penetration testing, encryption and secure hosting for web services, including the platforms we build for you. Every job ends with evidence: a report, a re-test letter, a monthly status.

Written permission and a fixed scope before any test. No passwords in any report.

Security services

Find the gaps, close them, prove it

01

Security audit

Web apps and APIs, servers, cloud accounts and everything you expose to the internet. Cyber Essentials readiness.

Findings report, ranked fixes
02

Penetration testing

Web applications and APIs to the OWASP testing guide, per user role. Networks, and apps built with AI tools. Free retest.

Report and re-test letter
03

Multilayer protection

The six layers above, designed and set up for your systems: firewall, filtering, intrusion prevention, private admin network, hardening, backups.

Layer diagram, hardening record
04

Encryption and certificates

TLS rated A+, automatic renewals, your own certificate authority for staff and devices, encrypted data, managed secrets.

Certificate and key inventory
05

Enterprise Wi-Fi

WPA2/WPA3-Enterprise with 802.1X and RADIUS. Certificates for laptops, phones, and IoT and embedded devices.

Design, configuration, test log
06

Monitor and respond

Leak and exposure monitoring, security updates, regular audits, and incident response: contain, clean, rebuild.

Monthly status report
When we build or host a platform for you

Designed for teams that expect to be attacked, not just scanned

Security is in the plan and the contract from day one, not added after launch. Each item below is a line in the project plan with its own check.

  • Servers and backups in the EUIn the region you choose, with copies in a second location.
  • Private mesh VPN for administrationNothing administrative is reachable from the internet.
  • Traffic filtering at the edgeRate limits, intrusion prevention, shared blocklists.
  • Two-factor sign-in and an audit logEvery admin action recorded: who, what, when.
  • Security test before launchFindings fixed and re-tested before real users arrive.
  • Updates and regular audits by contractSecurity fixes and dependency updates, with audits on an agreed schedule.
  • Source code escrowYou are never locked in, whatever happens to us.
  • Your account, our keysHosting in your name if you prefer; we hold only the access we need.
How we work

Each step ends with a document

  1. 1AssessA health check or a test. You get a findings report.
  2. 2AgreeFix plan, fixed price, your signed permission.
  3. 3FixChanges made, logged and re-tested. You get a re-test letter.
  4. 4RunMonitoring, patching, audits. A status report every month.
About 1 week

Security Health Check

Servers, accounts, email domain and internet exposure, checked against a written method.

From 3 days

Web App Penetration Test

One web application or API, tested per user role, with a free retest.

1–2 days

TLS and Encryption Check

Every certificate, protocol and key you rely on, with renewals automated.

Ask for a quote Tell us what you run; we reply with a fixed price.
Also from IDNL

Second Line

An AI agent that investigates each support email before your team replies. It reads your knowledge base, tickets, logs and documents, finds the cause, and drafts the answer for a person to check. Built and secured to the same standard as everything on this page.

Watch Second Line work
  1. OperatorAssigns the email to Second Line
  2. SourcesTickets, site database and runbook checked
  3. Levels 1–3Switch logs, network path, app source code
  4. Cause foundA renewed certificate the kiosks don’t trust
  5. OperatorReviews the drafted reply and sends it
Build & Run

We also build, move and run the systems

So the fixes we recommend actually get made, and new systems arrive already hardened.

BuildWeb applications, portals, SaaS and white-label platforms.
MigrateWindows to Linux, old databases to PostgreSQL, hosts and mail, with a rollback plan.
Set up and integrateServers, cloud, mail and helpdesk; single sign-on, payment and banking APIs.
Support and maintainAgreed response times, patches within 14 days, tested restores.
Our own systems

We run production systems behind the same six layers

Incident responseA client’s office PC was compromised

Traced, contained and blocked at the network edge, with an evidence report for the client.

OutageBack in 22 minutes

A hosting provider stopped two servers without notice. Firewall and tunnels were checked before services reopened.

MigrationA production server moved from Windows to Linux

Application and database moved onto two hardened Linux servers.

  • Ground rules:
  • Written permission before any test
  • No passwords in reports
  • Legitimate data sources only
  • Credentials handed over by one-time links

Tell us what you run and what worries you

A 30-minute call, no charge. You get a short written note of what we would check first, and what it would cost.

Or write to info@idnl.solutions