AlphaSec (part of the Alphabyte Group, established 2009) delivers remote and on-site cyber security for SMEs and professional practices in Cardiff. Every engagement can start with a Free 28-Point Microsoft 365 Security Audit or a Free 1-Page Domain Security Snapshot, followed by our flagship Monthly Cyber Posture plan (£395 + VAT/month), one-off guided Cyber Essentials (from £295 + VAT), Cyber Essentials Plus (CE+ · quoted per company), or a £295 + VAT DMARC email lockdown.
Based at 9/10 Connies House on Rhymney River Bridge Road (CF23 9AF), AlphaSec is the specialist cyber security division of the Alphabyte Group (established in Cardiff in 2009). We help Cardiff solicitors, accountants, construction firms, financial advisers and SMEs lock down Microsoft 365, stop invoice fraud and maintain Cyber Essentials & Cyber Essentials Plus year-round.
How we protect Cardiff businesses (Cardiff City Centre, Cathedral Road, Cardiff Bay, Cardiff Gate Business Park, Llanishen, St Mellons and Coryton)
- Monthly Cyber Posture (£395 + VAT/month · Annual Plan — Main Product): 4 hours every month of dedicated security engineering to get your security posture into tip-top shape and keep it there, plus continuous Microsoft 365 & DMARC drift monitoring, a quarterly executive & cyber-insurance report, and your annual guided Cyber Essentials readiness included (you only pay the IASME body fee).
- Guided Cyber Essentials & Cyber Essentials Plus (CE+): Ideal for Cardiff firms bidding on Welsh Government, Cardiff Council, NHS Wales, housing association and tier-1 construction tenders. One-off guided CE readiness starts from £295 + VAT (+ IASME fee); Cyber Essentials Plus (CE+) with hands-on vulnerability verification is quoted per company.
- Microsoft 365 security hardening: Conditional Access policies, phishing-resistant MFA, admin account separation, external mail-forwarding locks, SharePoint permission cleanup and 28-point tenant reviews.
- DMARC, SPF & DKIM email security (£295 + VAT fixed price): Stop criminals sending fake invoices or bank-detail changes pretending to be your Cardiff domain.
Whether your Cardiff team has 5 staff or 150, we check 28 critical controls across sign-ins, global admins, email spoofing, SharePoint, Copilot exposure, backups and devices—and send you a Red, Amber and Green PDF report within 24 hours.
Request your free M365 audit See sample report → 28-point checklist →
Published cyber security pricing for Cardiff firms
We publish clear prices upfront so you never have to sit through a sales pitch to find out what things cost. All prices exclude VAT:
| Service | What is included | Investment (+ VAT) |
|---|---|---|
| Free 28-Point M365 Audit | 15-minute read-only review of 28 Microsoft 365 & domain controls + Red/Amber/Green PDF report | Free (worth £290) |
| Monthly Cyber Posture (Main Product) | 4 hours/month of hands-on security engineering, continuous M365 & DMARC monitoring, quarterly executive/insurer report, and annual guided Cyber Essentials readiness included (annual plan) | £395 / month (+ IASME fee on renewal) |
| Guided Cyber Essentials (One-Off) | Full scoping, technical remediation guidance and question-by-question review to pass first time | From £295 (+ mandatory IASME fee) |
| Cyber Essentials Plus (CE+) | Hands-on technical vulnerability scan, endpoint verification and accredited CE+ audit management | Quote per company (by user/device count) |
| DMARC, SPF & DKIM Lockdown | Complete DNS email authentication setup moved safely from monitoring to full p=reject enforcement |
£295 fixed price |
Joined-up IT support & AI automation in Cardiff
AlphaSec is part of the Alphabyte Group. If you also need day-to-day managed IT support or want to automate repetitive admin once your Microsoft 365 tenant is locked down, see our sister teams covering Cardiff:
- Managed IT Support in Cardiff (Alphabyte IT): Managed IT support, Microsoft 365 licensing, cloud backups and responsive helpdesk support since 2009.
- AI Consultant Cardiff (AlphaOps): Practical workflow automation, Microsoft 365 Copilot readiness, Anthropic Claude & Google Gemini integrations, starting with a free 2-hour automation audit.
- AlphaPixel: Fast £495 static websites (with a free homepage concept first) and £49/month automated weekly SEO.
Frequently asked questions — Cardiff
How does the Free 28-Point Microsoft 365 Security Audit work for Cardiff firms?
It is completed 100% remotely in a 15-minute read-only screen-share with Ross Owen (or via temporary Global Reader access). Nothing in your Cardiff Microsoft 365 tenant is changed during the audit. Within 24 hours you receive a Red, Amber and Green PDF report showing where your sign-ins, admin accounts, email forwarding, SharePoint permissions and backups stand.
What is included in the £395 + VAT/month Monthly Cyber Posture plan?
Monthly Cyber Posture is our flagship annual plan for Cardiff SMEs and professional practices. It gives you 4 hours every month of dedicated security engineering to remediate gaps and harden your systems, continuous Microsoft 365 and DMARC drift monitoring, a quarterly executive & cyber-insurance posture report, and your annual guided Cyber Essentials readiness preparation included (you only pay the IASME body fee).
Do you offer both Cyber Essentials and Cyber Essentials Plus (CE+) in Cardiff?
Yes. We provide one-off guided Cyber Essentials certification from £295 + VAT (plus the mandatory IASME certification fee, priced by staff size), and we deliver Cyber Essentials Plus (CE+)—which includes the independent hands-on technical vulnerability audit—on a quote-per-company basis depending on your user count, device types and locations.
Can you work alongside our existing Cardiff IT support provider?
Yes. You do not need to switch IT provider. Most of our Cardiff clients keep their existing day-to-day IT support or internal IT manager and use AlphaSec specifically for independent Microsoft 365 audits, DMARC enforcement, Cyber Essentials / CE+ certification and ongoing security posture oversight.
Areas we cover across Wales & the West
Cardiff (CE) · Cardiff · Bristol · Bath · Newport · Swansea · Caerphilly · Bridgend · Pontypridd · Pontypool · Cwmbran · Barry · Penarth · Merthyr Tydfil · South Wales · West Wales