We find and fix security weaknesses in the systems your practice relies on, and test whether you can recover when something goes wrong.
For UK care providers, legal firms, accountants, and clinical practices handling sensitive client or patient records. We work alongside your existing IT provider on a clear scope with fixed pricing.
We check who can access your systems, how connected devices and suppliers connect to them, and whether your backups actually restore to working services.
We implement agreed improvements alongside your existing IT provider, with clear boundaries, minimal disruption, and fixed pricing.
You receive documented findings and empirical test results showing what was changed, what works, and what still needs attention.
With automated scanning and AI-assisted attacks, an unsegmented camera, vendor backdoor, or untested backup can be discovered and breached in minutes rather than days.
Instead of generic checklist questionnaires, we conduct practical technical tests on your site to evaluate real security boundaries and actual recovery capability.
We map exactly where sensitive data travels: who has access, where logs and backups are stored, and what level of access external software vendors and support contractors hold.
Physical security hardware must never create internal vulnerabilities. We test whether security cameras, door-entry equipment, or visitor Wi-Fi can reach confidential records.
A confirmation email from an automated backup system is not proof of recovery. We restore an agreed system to staging hardware and measure real elapsed recovery time.
How physical devices, public-facing services, and internal practice records are compartmentalised to prevent lateral movement.
Even if an auxiliary device is compromised, it cannot send or receive traffic across to practice systems.
Access strictly restricted by physical port assignment, local Unix sockets, and read-only cache locks.
Exact timed restore logs from non-production drills. Demonstrates actual recovery minutes, not theoretical estimates.
Timed drill proofA clear physical and logical audit map documenting every connected camera, terminal, Wi-Fi access point, and supplier route.
Network topologyPrioritised, plain-English instructions your existing IT provider can easily verify, execute, and maintain going forward.
Fixed remediation listConcrete outcomes from our recent on-site audits and system hardening engagements.
The home relied on cloud-hosted phones that cut out whenever street-level broadband dipped. In addition, 16 IP security cameras and visitor Wi-Fi operated on the exact same network as computers handling confidential resident care plans.
We separated all security cameras, door controllers, and visitor devices into isolated virtual network zones (VLANs), preventing any unauthorised movement between devices (lateral traversal). We deployed an automated 4G cellular backup route for the on-site telephone switchboard (PBX) and ran a controlled recovery drill.
Simulated fibre severance triggered an automated 8-second failover to cellular without dropping active family emergency calls. A non-production recovery drill restored 18 months of care records in 18 minutes with zero disruption to staff handovers.
In standard setups, web application processes hold direct read access to database passwords, security certificates, and underlying system tools. If a public web flaw emerges (such as a PHP vulnerability or third-party software defect), an attacker could read customer records, alter source files to leave permanent backdoors, or compromise the entire server.
We confined the web service inside a strict sandbox. The public web software was completely stripped of administrative ('sudo') privileges and barred from reading master database credentials or private security keys. We locked executable files and framework caches as read-only, moved internal traffic off open network ports into locked system channels, and established an automated release process with instantaneous rollbacks.
In controlled breach drills simulating malicious script execution directly within the web runtime, the blast radius was 100% contained: zero access to sensitive credentials, zero ability to alter server files, and zero route to neighbouring services. Emergency security updates and one-command rollbacks were tested and verified in under 10 seconds without dropping user sessions.
While the fundamentals of network isolation and verified disaster recovery apply everywhere, we tailor our reviews to the operational rhythms of each profession.
Duty phone failover, visitor safeguarding kiosks, safe staffing terminals, and offline care record continuity.
Confidential casework boundaries, fee-earner voice dictation trials, and read-only practice management connectors.
Private bank statement extraction, isolated payroll storage, 7-year audit vaults, and tax season phone uptime.
Isolated network zones (VLANs) for 3D imaging equipment, shielding legacy sensor workstations, and hands-free charting.
Secure local storage for high-resolution retinal scans, network separation for NHS billing terminals, and triage phone failover.
Automate dictation, summaries, and document extraction on local hardware without sending sensitive client data to external chatbots.
Sovereign Systems & Advisory is an independent engineering firm based in North West London. Every engagement is led and executed directly on site by our founding technical partners.
Leads client engagements, operational risk scoping, and regulatory alignment across healthcare, care, and legal sectors (CQC, SRA, ICAEW). Focuses on practical continuity, ensuring audits remain strictly bounded, jargon-free, and directly actionable for practice managers.
Directs technical inspections, Linux operating system hardening, network isolation, and empirical backup restoration drills. Brings decades of senior expertise in bare-metal infrastructure resilience, privilege stripping, and worst-case scenario containment.
We attend your premises in person to inspect physical cabling, switches, security cameras, telephone routing, and server hardware.
We do not replace your existing IT provider. We schedule all tests with them in advance and provide clear, actionable steps they can verify and maintain.
Every review has an agreed, written scope and fixed price. You receive working improvements, verified test results, and complete documentation.
Discuss a fixed-scope review for your site or send an enquiry below.