Penetration Testing as a Service
Pass the audit. Clear the review. Prove it's fixed.
Certified in-house pentesters on web, API, cloud, network and mobile, plus LLM apps, AI agents and MCP servers. Findings land live, every fix retested. Not a point-in-time PDF.
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A report proves a test happened, It doesn't prove you're safe
You booked the pentest to clear an audit, unblock a customer review, or ship a release without shipping a vulnerability. What most firms hand back is a PDF: a list of findings, and no confirmation any of them were ever fixed. You're the one who has to vouch for it, to the auditor, to the prospect's security team, to your board. And if a fix didn't hold, you find out the hard way.
A finding you can't prove you closed is a finding that's still open, on your watch.
A stalled security review can freeze a deal; a thin report can sink an audit.
Assurance should mean your risk actually went down, not that a test happened.
Your last pentest never looked at the AI you shipped this year
The LLM apps, AI agents, and MCP servers your teams put into production didn't exist last audit cycle, and legacy pentest firms still can't test them. That's a live, untested attack surface sitting inside your business. We test it the way an attacker would, and we've already found what's hiding there.
Closed critical session leakage, prompt injection, and vendor-isolation vulnerabilities before the platform went live.
Read the case study →Hardened a multi-agent GenAI platform against goal hijacking and unsafe tool use across chained agent workflows.
Read the case study →Secured an enterprise AI-to-ServiceNow integration where model, tooling, and identity boundaries meet.
Read the case study →Run the test you need now. Grow into always-on
Most teams arrive needing a single test for an audit or a customer review. Start there, and step up to continuous only when your release cadence demands it.
One-time
For an audit, a customer security review, a launch, or diligence. Full report, remediation guidance, and Verified Closure retesting within 60 days of the report.
Periodic
Repeat testing on the cadence your compliance program or customers require. Same certified team, consistent methodology, and a year-over-year record of what was found and closed.
Continuous
Testing that keeps pace with your release cycle instead of your audit calendar. Schedule engagements from the platform, and retest fixes the moment you mark them ready, no waiting for a window.
Not sure which fits? Book a Demo and we'll size it to your environment and compliance needs.
Your whole attack surface:
including the AI half most firms skip
You're being asked to secure AI you didn't build, with tools that were never designed to test it.
The coverage every enterprise expects
- Web applications: OWASP Top 10, business-logic flaws, auth and session handling.
- APIs: REST and GraphQL, broken object-level authorization, data exposure.
- Network: external and internal, segmentation, exposed services.
- Cloud: misconfiguration, IAM and privilege paths, exposed storage.
- Mobile: iOS and Android, storage, transport, and API abuse.
Tested by people, not a scanner with an AI checkbox
- LLM applications: prompt injection, jailbreaks, data leakage, unsafe outputs.
- AI agents & agentic workflows: goal hijacking, unsafe tool use, chained exploits, memory poisoning.
- MCP servers & tools: over-permissioning, tool poisoning, unauthorized invocation, secrets exposure.
Whatever brought you here. We've scoped it before
Pass an audit
Reports structured as evidence for the pentest control in PCI DSS, SOC 2, ISO 27001, and HIPAA.
Clear a customer security review
Hand a prospect or partner a certified, current pentest report instead of stalling the deal.
Launch a product or release
Test before you ship, so a new feature doesn't ship a new vulnerability.
M&A and due diligence
Independent assurance on what you're acquiring, or on your own posture before a raise.
Stand up your program
A first pentest that gives you a baseline and a path, not just a PDF.
Test what you just built with AI
LLM apps, agents, and MCP servers that didn't exist last audit cycle.
Three steps. From exposed to proven closed
No lengthy onboarding. No procurement bottleneck. No waiting on consultants. Here's what happens when you say yes.
Map your attack surface.
Run a free attack surface scan, results in minutes to hours. Every internet-facing asset mapped the way an attacker would map it.
Test your stack.
Autonomous Pentesting runs continuously on the platform. Add expert pentesters for a compliance window or an ongoing engagement.
Prove every fix.
Every fix retested automatically. Critical fixes signed off by certified engineers. Auditors get the certificate before they ask.
A pentest that ends with a PDF has documented your risk, not reduced it
Verified Closure is our retest: we confirm each fix actually holds before we mark it closed. It's the same discipline either way, and it's the record you hand your board and your auditor.
Why 60 days? Past that, your releases have changed the app, so a retest is really a new test. That's exactly what a continuous engagement is for.
"We oversee multiple brands and continuously introduce new capabilities. These are very layered and interconnected systems. Our problem was constantly benchmarking and maintaining visibility into our security landscape, while expediting vulnerability triage and remediation timelines. Siemba helped us solve for this with their PTaaS solution."
Jim Maggio · VP Engineering, FRONT STEPS
Every engagement runs in one platform
Not a PDF emailed weeks later. A live workspace where testing, findings, retests, and reporting happen together, and where leadership sees posture at a glance.
▪See your whole program
- Enterprise dashboard across your full portfolio
- Asset-wise and pentest-wise views
- Your riskiest assets, ranked
- Pentest landscape by status: scheduled, in-flight, completed
- Blockers and action items that could stall a test
- A daily status for every pentest
▪Work the findings live
- Findings severity breakdown, current and trending
- Findings status breakdown: open → retest ready → remediated
- Kill chains for exploit context
- One-click reports for board, auditors, and customers
- A named Success Team, with in-app chat to your pentester
- Findings pushed to your Slack or ticketing system
Your AI Security Officer offering real-time insights and risk-based decision support.
Imminent SSL/TLS Certificates Expiry
8 SSL/TLS certificates will expire in the next 30 days, which could lead to service disruptions and security risks.
Inefficiencies in Vulnerability Remediation Cycles
MTTR for certain critical vulnerabilities exceeds 7 days, indicating inefficiencies in your current remediation process.
Unrestricted Hacker Access Through Unpatched Exploits
10 vulnerabilities allow unauthenticated exploitation and have public exploits already available.
Zero-Day Vulnerabilities Jeopardize Security
Multiple unpatched vulnerabilities could grant attackers unauthorized access to critical systems.
Vulnerabilities Lacking Patches Pose Immediate Risk
Active vulnerabilities identified with no patch currently available, increasing your attack surface.
Vulnerabilities Enable Lateral Movement or Privilege Escalation
A number of new vulnerabilities allow lateral movement across systems and privilege escalation.
What you actually receive
You don't need more findings. You need something your engineers can act on and your auditor will accept, with a human on the other end of it.
◆Executive report
The business-level summary for leadership and the board.
◆Technical report
Full findings with business impact and severity for every issue.
◆Steps to reproduce
Exact reproduction paths so engineers can confirm and fix, fast.
◆Subtitled video POCs
Recorded proof for every finding, high through low severity.
◆Remediation & compensating controls
What to fix, and what to put in place when a fix has to wait.
◆Business risk score
A single, defensible measure of where your risk actually sits.
◆Compliance mapping
Findings mapped to PCI DSS, SOC 2, ISO 27001, and HIPAA controls.
◆Engagement letter & custom reports
Attestation you can share, plus report formats built to your needs.
◆In-app chat + walkthrough call
Message your pentester in-platform, and a vulnerability walkthrough call on every engagement.
See a real report before you commit
Preview a redacted engagement: executive summary, a finding with steps to reproduce, and a Verified Closure record.
How Siemba compares to your other options
You could stay with a boutique, call a Big 4 firm, lean on a scanner, or wait for the annual test. Here's the honest trade-off.
vs A boutique pentest shop
You get a PDF and they're gone: no platform, no live findings, no confirmation the fixes held. We stay in the engagement until every finding is retested and marked closed.
vs A Big 4 engagement
The same caliber of testing: global consulting firms bring us in for exactly this: but scoping in 24 hours, findings in real time, and transparent per-app pricing instead of a six-figure SOW and a multi-month wait.
vs An automated scanner
Scanners flag; they don't exploit, prioritize by business impact, or prove a fix holds. Certified humans do: with AI accelerating recon and triage so their time goes to the hard problems.
vs Waiting for the annual test
The gap between yearly tests is where breaches happen. Continuous engagements close it: the same in-house team, testing on your release rhythm.
Built for enterprise programs
Whether you're testing one app or an interconnected portfolio across business units, the engagement, and the team, scales with you.
Portfolio, not point solution
From a single app to enterprise-wide portfolios spanning multiple brands and business units.
Concurrent by design
Run many engagements at once, on overlapping timelines: no waiting in a queue for the next slot.
One team, more scope
Add surface, apps, or cadence without re-procuring. The same in-house team grows with your program.
Consistent at any size
The same methodology: OSSTMM, OWASP, PTES, NIST 800-115, applied identically across one app or a hundred. Scale changes the scope, never the rigor.
When a yearly test isn't enough anymore
A once-a-year pentest tells you about the app you had a year ago. As your release cadence speeds up and your AI surface grows, the gaps between tests become the risk. Continuous engagements close that gap: the same certified team, testing on your release rhythm, with retest-when-ready closure and findings live in the platform. When you're ready to graduate from annual to always-on, it's the same team and the same platform, nothing to re-procure.
Real programs. Proven outcomes
saved over two years: a 70% cut in projected security spend, reinvested into product and customer growth.
Clear mitigation strategies and continuous expert guidance closed security gaps before they became costly incidents.
Smoother audits and more effective risk management, with a security posture the team could stand behind.
"Siemba helped us benchmark and maintain visibility across layered, interconnected systems, while expediting triage and remediation."
Jim Maggio · VP Engineering, FRONT STEPS
Replaced their incumbent to meet global enterprise-customer security mandates, improving posture continuously through quarterly pentests.
Mitigated risk and raised development standards across multiple applications, with pentest documentation submitted for Federal approval.
Engaged pre-launch to validate and demonstrate security controls to partners and customers on a recurring, release-based cadence.
The questions you'll actually ask
Will this satisfy my compliance requirement?
What's your methodology?
How do you protect production?
What do I actually receive?
Do findings really appear in real time?
Is retesting included?
Who are your testers, and what do they hold?
How fast is it?
Where does my data live?
Scoped price. Closure included
You want to know what this costs before you get on a call. Here's where it starts.
Scoped price, full report, and Verified Closure retesting included. Periodic and continuous programs are priced on a custom schedule sized to your attack surface and cadence.
Larger applications and API-heavy targets are scoped to your environment. Book a Demo and we'll size it with you.