Exposure remediation, zero trust and DevSecOps
Find what an attacker could reach, fix it in order and keep it closed
Too many ways in
Attackers look for the easiest way in: an exposed service, a reused password, an unpatched server or an application that trusts its input. Most organisations know they have weaknesses. Few know which ones matter most, and the list grows faster than teams can patch.
Networks built on trust make it worse. Once an attacker is inside the perimeter, a flat network lets them move from one system to the next.
What changes for you
Exposure you can see
A current, ranked view of what an attacker could reach, instead of an annual report that is out of date on arrival.
Breaches that stay small
Every request is checked and systems are segmented, so one compromised account or server does not open the rest.
Secure code by default
Security checks run in every pipeline, so vulnerabilities are caught before release, not after.
What we deliver
Continuous threat exposure management
Continuous threat exposure management (CTEM) is a standing programme that finds, ranks and fixes what an attacker could reach, across applications, cloud accounts, networks and identities.
Autonomous exposure remediation and auto-patching
Common exposures fixed automatically through tested pipelines, such as patches, insecure settings and expired certificates, with a person approving anything that could disrupt a service.
Zero-trust network access
Zero trust means no user, device or service is trusted because of where it connects from. Zero-trust network access (ZTNA) checks identity and device health on every request and replaces broad VPN access.
Micro-segmentation
Systems separated into small zones with written rules for what may talk to what, so an intruder cannot move freely.
DevSecOps
Secret vaults, an automated software bill of materials (SBOM) for every build, dependency and container scanning, and code audits built into your delivery pipeline.
Continuous penetration testing and API security
Applications, APIs and infrastructure tested the way an attacker would test them, after every significant change, with every finding described so it can be reproduced.
Red and blue team exercises
A red team attacks within agreed rules while your blue team defends, so you learn how well detection and response work under pressure.
How the work runs
Agree the scope and the rules
We agree which systems are in scope, how testing is done, who is told and how we stop if a system is at risk.
Map the exposure
We review architecture, configurations, access and code, and test the systems the way an attacker would.
Rank the findings
We rank each finding by likelihood and impact, explain it in plain language and agree the order of the fixes.
Fix and automate
We fix the findings with your team, automate the fixes that recur, and introduce zero-trust access and segmentation in stages.
Test again, continuously
We retest every fix and keep testing as your systems change.
How we prove it in our own work
We work this way ourselves. Every XSIS engineer signs in with a hardware security key, through zero-trust network tunnels that check the device continuously.
- Security and cryptography
- Cloudflare Zero Trust
- HashiCorp Vault
- Software bill of materials (SBOM)
- Standards and regulations
- NIS2
- EU DORA
- EU Cyber Resilience Act (CRA)
How to start
What happens next
Pre-consulting session
A free 30-minute online pre-consulting session: we go through your goals, systems and constraints.
Readiness review
In a free 48-hour readiness review, a Principal Architect checks your project against the 6-point Definition of Ready and recommends the track that fits.
Choosing the track
Scope-ready projects receive a binding proposal within 3–5 business days. Concept-stage projects start in the Blueprint Studio. A live system that is failing, undocumented or needs integration starts with a diagnostic of 1–2 weeks. The Blueprint Studio and the diagnostic each have a fixed fee, quoted in the proposal.
Delivery in five stages
Mobilisation, sprints with live demonstrations, integration and hardening, acceptance and go-live, then managed services. After launch comes a warranty period, then optional support and maintenance.
Fixed-outcome projects and round-the-clock managed services
Fixed-scope, milestone-driven delivery with named delivery leads, and round-the-clock application managed services under SLA governance.
Embedded specialists and strategic augmentation
Nearshore and on-site principal engineers and specialists, and embedded solution, transformation, PQC and integration architects.
The quickest way in is the Post-quantum (CBOM) and agent security audit package, one of our rapid engagement packages.
Questions and answers
Do we have to replace our VPN to adopt zero trust?
Not at once. Zero trust is introduced in stages, usually starting with the most sensitive applications and administrator access. The VPN can stay for what still needs it and is retired once nothing depends on it.
What is an SBOM, and why do we need one?
A software bill of materials lists every component and library inside a piece of software, with its version. When a new vulnerability is announced, it tells you quickly whether you are affected and where. Regulations such as the EU Cyber Resilience Act (CRA), and many customers, now ask for one.
How do your engineers access our systems?
Each engineer has a named account with only the rights the task needs, and signs in with a hardware security key. Where you have a process for administrator access, we follow it. Sessions are logged, and access is removed when the work ends or someone leaves the project.
What is continuous threat exposure management?
A standing programme instead of an annual test. It keeps a current list of what an attacker could reach, ranks each exposure by how likely it is to be used and what it would cost you, and tracks every fix until it is closed. Scanning runs continuously and testing follows every significant change.
What is a red and blue team exercise?
A rehearsal under real conditions. A red team attacks your systems within agreed rules, while your blue team, the people who detect and respond, defends them. Afterwards both sides review what was found, what was missed and how long each step took, and you receive the changes that close the gaps.
Ready to build? Ask for a proposal.
Send your requirements or RFP. Our architects validate them and return a binding, fixed-scope proposal.
What happens next
Readiness review
In a free 48-hour readiness review, a Principal Architect checks your project against the 6-point Definition of Ready and recommends the track that fits.
Binding proposal
After architecture validation at no cost, you receive a binding, fixed-scope proposal within 3–5 business days: milestones, architecture, team structure and SLAs. We sign a non-disclosure agreement (NDA) with you on request, before you share your requirements.
Mobilisation
Once you sign, our engineering pods begin Sprint 0 within 5–10 business days of contract signature.
Delivery in five stages
Mobilisation, sprints with live demonstrations, integration and hardening, acceptance and go-live, then managed services. After launch comes a warranty period, then optional support and maintenance.