Cyber defence, built for UK organisations
Focused tools that take UK SMEs, MSPs and regulated firms from Cyber Essentials preparation to incident response — without enterprise-platform complexity.
Live defence — real attacks, blocked in real time
Live view of malicious traffic intercepted at our edge firewall — triaged autonomously by Sentinel, CrownSync’s AI security analyst. Attacker details shown are public threat intelligence. Scroll to zoom, drag to pan, select a marker for details.
Products
Focused products. Real problems solved.
Each product is purpose-built and standalone — ready to use today, with more in the works.
CE Readiness
Prepare for Cyber Essentials certification using the official Danzell v3.3 question set. Collaborate with your team, assign questions, track remediation, and get board sign-off — all in one place.
- Covers all 5 Cyber Essentials control areas
- Team collaboration and question assignment
- Gap analysis and remediation tracking
- Board sign-off workflow with audit trail
Playbooks
pb.crownsync.uk
UK-specific incident response playbooks tailored to your organisation. Customise for your sector and regulatory context, collaborate with your team, and export signed PDFs for audit.
- Ransomware, BEC, data breach, insider threat and more
- Collaborative editing with version control
- Signed PDF export with verification ID
- Partner portal for MSPs and consultancies
Pricing
Free to start. No credit card required.
CE Readiness is completely free during launch — all features included. Playbooks offers a free trial so you can evaluate before you commit.
About CrownSync
Built in the UK, for the UK
CrownSync LTD is a UK company focused on building practical cyber security tooling. We keep things simple: focused products, clear pricing, and infrastructure you can trust.
UK & EEA infrastructure
All customer data is hosted on Hetzner infrastructure within the EEA, fronted by an enterprise edge WAF. No data leaves Europe.
Security by design
Row-level security, full audit logging, encrypted at rest and in transit. We hold professional indemnity and cyber insurance.
ICO registered
Registered with the Information Commissioner’s Office (ZC109210). GDPR compliant with documented data processing.
Aligned to standards
CE Readiness uses the official NCSC Cyber Essentials question set (Danzell v3.3). Playbooks reference ICO, FCA, NIS, and SRA frameworks.
Built for teams
Multi-user organisations with role-based access. Invite team members, assign work, and collaborate in real time.
Partner-friendly
MSPs, MSSPs, and security consultancies can manage multiple client organisations through our partner portal.
Get started
See it in action
Create a free account in minutes — or get in touch and we’ll walk you through it.