PTaaS: Penetration Testing as a Service, Explained
PTaaS — Penetration Testing as a Service — delivers penetration testing as an ongoing subscription through a platform, rather than as a one-off consulting project that ends with a PDF. It pairs on-demand and continuous testing with a live dashboard, faster turnaround, and always-current evidence. Matproof Sentinel is a PTaaS platform built for compliance-driven teams: AI-driven testing with proof-of-exploit, CI/CD-integrated continuous coverage, and audit-ready reports mapped to ISO 27001, SOC 2, NIS2 and DORA — from €299/month. Start with a free 3-minute scan.
Why PTaaS is replacing the one-off penetration testing project
The traditional penetration testing engagement is a project: you scope it, wait weeks for a slot, receive a point-in-time PDF, and start the cycle again next year. That model was fine when software shipped annually; it fits badly with continuous deployment, and it leaves you with stale evidence for most of the year. PTaaS reframes testing as a service you subscribe to rather than a project you commission. The practical differences are significant: testing is on-demand and continuous rather than scheduled months out; results appear in a live dashboard rather than a static document delivered weeks later; re-tests of fixed findings are part of the service rather than a separate invoice; and evidence stays current because testing runs on every significant change. For compliance, this is a better fit — surveillance auditors want proof the testing programme operated throughout the period, which a subscription naturally produces. The market is moving this way for the same reasons SaaS replaced boxed software: lower friction, predictable cost, and continuous value instead of a depreciating one-time deliverable. PTaaS is the fastest-growing penetration-testing model, and Matproof Sentinel is built natively as a PTaaS platform — not a consultancy bolting a portal onto a project.
- Subscription, not project: on-demand and continuous testing instead of a scheduled engagement that's stale by the time it's delivered.
- Live dashboard, not static PDF: findings, severity trends and remediation status visible in real time — though Sentinel still exports the audit-ready report auditors need.
- Re-tests included: verification of fixed findings is part of the service, not a separate bill.
- Always-current evidence: testing on every significant deploy gives surveillance auditors the 'programme operated throughout the period' proof they require.
- Predictable economics: a fixed monthly cost replaces lumpy annual engagements — and usually costs less per year while covering far more change.
- Look for a platform built for it: a PTaaS platform (like Sentinel) is designed around continuous testing; a consultancy portal is still a project model with a login.
What to expect from a PTaaS platform (and what Matproof Sentinel provides)
- On-demand testing: launch a scan whenever you need one — no scheduling weeks out
- Continuous testing: automatic tests on significant deploys via CI/CD integration (GitHub, GitLab)
- Full OWASP Top 10 (2021) and OWASP API Top 10 (2023) coverage with proof-of-exploit per finding
- Live dashboard: findings, severities, remediation status and trends over time
- Audit-ready report export mapped to ISO 27001, SOC 2, NIS2 and DORA controls
- Included re-tests: verify fixes without a new engagement or invoice
- Drift and CVE monitoring: new endpoints, dependencies and CVEs affecting your stack flagged as they appear
- Transparent subscription pricing: €299/month (up to 3 domains) or €799/month (unlimited + authenticated/API/cloud), with a free preview scan
- Escalation to scoped human-led testing for bespoke environments on the Growth plan
Sample finding
PTaaS vs the annual engagement: the SaaS shift, applied to pentesting
Boxed software gave way to SaaS because subscriptions deliver continuous value, lower friction and predictable cost instead of a depreciating one-time purchase. Penetration testing is undergoing the same shift. The annual engagement is the 'boxed software' of security testing — a one-time deliverable that starts depreciating (going stale) the moment it ships. PTaaS is the SaaS equivalent: testing as a continuous service, always current, with a dashboard and predictable pricing. For teams that ship continuously and need current compliance evidence, the subscription model is simply a better fit — which is why PTaaS is the fastest-growing segment of the market.
Fix: If you ship more than a couple of times a year, evaluate PTaaS against your current annual engagement on three axes: currency of evidence, total annual cost, and re-test handling. Most continuous shippers find PTaaS wins on all three. Start with a free Matproof Sentinel scan, then subscribe from €299/month for continuous coverage; keep a scoped human-led engagement only for bespoke internal/OT needs.
Reference: ISO 27001:2022 A.8.29 / A.8.8 · SOC 2 CC7.1 · DORA Art. 24 · NIS2 Art. 21 · Matproof Sentinel pricing: matproof.com/pricing
PTaaS vs traditional: free scan vs Matproof Sentinel vs project-based consultancy
| — | Free scan | Matproof Sentinel | Traditional consultancy |
|---|---|---|---|
| Automated scan engine | ✓ (3-min preview) | ✓ Full scan | ✗ Manual only |
| OWASP Top 10 coverage | Partial | ✓ Complete | ✓ Complete |
| Proof-of-exploit evidence | ✗ | ✓ Per finding | ✓ Per finding |
| Regulatory mapping (DORA/NIS2/ISO 27001) | ✗ | ✓ Automated | ✓ Manual |
| Audit-ready PDF report | ✗ | ✓ Instant | ✓ 2–4 weeks delivery |
| Continuous / recurring scans | ✗ | ✓ Per deploy | ✗ Annual engagement |
| Time to first result | ~3 min | ~30 min full scan | 2–4 weeks |
| Price | €0 | From €149 | €8,000–€25,000 |
| Source code review (SAST) | ✗ | ✓ On Growth plan | ✓ Scoped engagement |
| API testing (REST/GraphQL) | ✗ | ✓ Automated | ✓ Manual |
PTaaS pricing (subscription, public)
- 1 full pentest scan
- AI-prioritized findings with CVSS 3.1
- Proof-of-exploit per finding
- Audit-ready PDF report
- Regulatory mapping (DORA, NIS2, ISO 27001)
- Unlimited scans (up to 3 domains)
- Continuous monitoring
- CI/CD integration (GitHub, GitLab)
- All regulatory mappings
- Priority support
- Unlimited scans + domains
- Authenticated / White-Box testing
- API & cloud infrastructure tests
- Dedicated security account manager
- 24h SLA response time
Frequently asked questions about PTaaS
What is PTaaS (Penetration Testing as a Service)?
PTaaS delivers penetration testing as an ongoing subscription through a platform, rather than as a one-off consulting project. It combines on-demand and continuous testing with a live dashboard, included re-tests, and always-current evidence — replacing the scope-wait-PDF cycle of the traditional engagement.
How is PTaaS different from a traditional penetration test?
A traditional pentest is a project: scoped, scheduled weeks out, delivered as a point-in-time PDF, re-tests billed separately, repeated annually. PTaaS is a service: on-demand and continuous testing, results in a live dashboard, re-tests included, and evidence that stays current because testing runs on every significant change. PTaaS fits continuous deployment and provides better audit evidence.
Is PTaaS the same as continuous penetration testing?
They're closely related. PTaaS is the delivery model (testing as a subscription via a platform); continuous penetration testing is the practice of testing on every deploy, which a PTaaS platform enables. Matproof Sentinel is a PTaaS platform built for continuous testing — see our continuous penetration testing page for the practice in detail.
Does PTaaS satisfy ISO 27001, SOC 2, NIS2 and DORA?
Yes — and often better than annual testing, because a subscription produces continuous evidence that the testing programme operated throughout the audit period, which is exactly what surveillance and recertification auditors look for. Matproof Sentinel maps every finding to ISO 27001:2022 A.8.29/A.8.8, SOC 2 criteria, NIS2 Art. 21 and DORA Art. 24, with proof-of-exploit and re-test verification.
How much does PTaaS cost?
Matproof Sentinel's PTaaS subscription is €299/month (unlimited scans across up to three domains) or €799/month (unlimited domains plus authenticated, API and cloud-infrastructure testing), with a free preview scan and single-run reports from €149. Compared with repeated annual engagements (£4,000–£12,000 each), the subscription typically costs less per year while covering far more change.
Go deeper — related blog articles
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