Meet your security team's force multiplier

Every stage of offensive security, on one platform

One platform for continuous attack surface mapping, autonomous vulnerability assessment, autonomous penetration testing, and expert-led testing. One workflow, one risk model, one proof of closure. No blind spots between engagements.

SOC 2 Type II Certified G2 rating 4.7 out of 5 stars Gartner Hype Cycle 2026
We test WebappAPINetwork CloudMobile LLM appsAI agentsMCP servers
Trusted by security teams at

The platform your program has been missing

Four disciplines your team currently buys, staffs, or stitches together separately, now sharing one data model.

01

One workflow, four disciplines

Mapping finds it. Assessment ranks it. Autonomous testing proves it. Experts go deeper when the stakes demand it.

02

Continuous, not point-in-time

Discovery never stops, tests run on every release, retesting is unlimited. Blind spots don't wait for next year's audit.

03

Every surface, including AI

Web, API, cloud, network, mobile, and the LLM and agent systems most vendors can't touch. One methodology across all of it.

04

Closed means proven closed

Unlimited automated retesting, plus certified engineer sign-off on the fixes that matter. Nothing closes on trust alone.

Your AI Security Officer offering real-time insights and risk-based decision support.

Medium Priority
8
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.

High Priority
22
Inefficiencies in Vulnerability Remediation Cycles

MTTR for certain critical vulnerabilities exceeds 7 days, indicating inefficiencies in your current remediation process.

High Priority
10
Unrestricted Hacker Access Through Unpatched Exploits

10 vulnerabilities allow unauthenticated exploitation and have public exploits already available.

High Priority
7
Zero-Day Vulnerabilities Jeopardize Security

Multiple unpatched vulnerabilities could grant attackers unauthorized access to critical systems.

Critical
12
Vulnerabilities Lacking Patches Pose Immediate Risk

Active vulnerabilities identified with no patch currently available, increasing your attack surface.

Low Priority
5
Vulnerabilities Enable Lateral Movement or Privilege Escalation

A number of new vulnerabilities allow lateral movement across systems and privilege escalation.

INTEGRATIONS

Fits into the stack you already run.

Jira
ServiceNow
Slack
GitHub
Okta SSO
Qualys
+more integrations
1Discover · Attack Surface Mapping

You can't defend what you don't know exists

Map every internet-facing asset the way an attacker maps it. Subdomains, staging boxes, dormant hosts long off the inventory.

<1 hr
Results in under one hour
0
Agents or credentials required
100%
Non-intrusive
  • Non-intrusive discovery. One domain in, every connected subdomain out.
  • Continuous monitoring. Flagged in hours, not quarters.
  • TLS & certificate grading. Protocol strength and cert expiry, A+ to F.
  • Criticality tagging. Set once, inherited by every finding on the asset.
  • Workflow integrations. Tested, validated and closed in one platform.
discover image
Prioritize image
2Prioritize · Vulnerability Assessment

Stop counting CVEs. Start fixing what matters

Thousands of CVEs on a spreadsheet won't tell you what's reachable, exploitable, or worth a sprint. Assessment correlates threat intelligence with your real environment to show what to fix first.

Every deploy
Reassessed, not quarterly
0
Findings ranked on severity alone
Live
Exploit intelligence, not a static score
  • AI threat correlation. Live exploit intel, not a static severity score.
  • Smart prioritization. A cycle's worth of findings, reduced to the ones that matter.
  • Continuous & release-triggered. Reruns on every deploy, not quarterly.
  • MTTR tracking. Whether you're closing risk faster, not just busier.
  • Workflow integrations. Ranked findings into Jira, GitHub, ServiceNow, and Slack.
3Test · Autonomous Penetration Testing

Drop a URL. Find out what an attacker would find

Fingerprints your stack, builds a test suite for it, then attacks behind MFA logins and authenticated workflows most scanners never reach.

Minutes
To first finding
0
Setup, scripts, or config
Production-safe
No destructive tests
  • Instant, one-click testing. CXO summary and technical detail in one export.
  • Deep coverage beyond the surface. OTP, custom auth and JS-heavy apps, behind the login, with screenshots proving it.
  • WAF-aware testing. Flags a firewall or rate limiter the moment it blocks payloads.
  • IDOR without writing a test case. From your OpenAPI, Swagger, or Postman spec, using two IDs.
  • Built into your pipeline. Runs in CI/CD, failing runs can block the build.
Test image
Validate image
4Validate · Expert-Led Penetration Testing

Manage every manual pentest from one dashboard

Certified in-house pentesters, OSCP and CEH, run manual deep dives across web, API, mobile, thick client, network and cloud, plus the AI systems most firms won't touch.

Real time
Findings as testers file them
1 click
Attestable report download
$0
Retest fees
  • Manual depth testing. Red-team depth on any asset, not a payload library on autopilot.
  • Adversarial AI testing. Prompt injection, jailbreaks, model extraction, chained agentic attacks.
  • Business logic flaws. The gaps no CVE catches but an attacker walks straight through.
  • Chat with your pentesters. Nothing reaches you until a second engineer signs it off.
  • Verified closure included. Every fix retested by a certified engineer. Never an add-on.

Manual engagements are scoped and priced separately from the platform subscription.

A fix isn't closed until it's proven closed

Fixes reappear. Trust isn't proof. Every fix is retested automatically and anything that comes back is flagged, unlimited. For critical fixes, a certified engineer signs off independently and issues an audit-ready certificate. And the window never shuts: most providers give you 30 or 90 days to retest, then close the door on a fix that regresses in month four.

From point-in-time testing to continuous, proven validation

What changes when discovery, prioritization, testing, and expert validation share one platform instead of four separate vendors.

Traditional testing Siemba, unified Scanner-only tools
What can it test? Fixed scope, limited visibility, siloed coverage Dynamic scope across web, API, cloud, mobile, network, and AI, continuously updated Broad scope, but no shared visibility across tools
How are exposures found? Manual discovery limits what's found Continuous discovery and mapping, shadow IT included Automated, but lacks business context
How are findings ranked? CVSS score or tester judgment Ranked by exploitability and business impact, not score alone CVSS scoring alone
How is real risk proven? Point-in-time pentests or annual reviews Continuous autonomous testing proves exploitability; experts validate high-stakes targets Automated scanning only; false positives common
How actionable is the output? Static reports, delayed feedback Evidence, remediation steps, and business impact for every finding Alerts without much context
Can it test authorization? Manual, expensive, and only for the assets you scoped IDOR tested automatically from your API spec, with a curl command for every hit Rarely; access-control logic needs tests a human writes
The bottom line Reactive, and relevance expires between engagements Continuous, measurable reduction of exploitable risk Better visibility, limited risk reduction

Why security teams choose the unified platform

1

One platform, one view of risk

The number you report upward is the same number your engineers work from.

2

Coverage that scales without headcount

Continuous discovery, autonomous testing on every release, and on-demand certified pentesting.

3

Single sign-on and evidenced findings

Log in through your own identity provider. Every finding ships with screenshots and video proof.

4

Audit-ready out of the box

Mapped on arrival to OWASP, NIST, PCI DSS, MITRE ATT&CK, CWE, GDPR, HIPAA, ISO 27001, and CMMC.

5

Certified pentesters on demand

OSCP, OSWE, and CEH-certified experts ready to go deeper, with full context, when stakes demand it.

6

Unlimited retesting, included

Validate fixes as many times as you need until findings are closed, at no additional cost.

7

Remediate what's exploitable, faster

See what's exploitable, how it chains together, and what impacts the business, without the noise.

8

Your data leaves when you do

A 90-day export window after contract end, then destruction with a signed attestation.

NEW

Run your pentest from your AI assistant

Prefer to work from Claude, Cursor, or any MCP client? Siemba is available as an MCP server. Trigger scans, pull findings, and scope engagements without leaving your AI client.

Claude Cursor Any MCP Client
Learn More

The outcomes security teams get from Siemba

What teams say about working with us
★★★★★
Taught us how to think about security.
Siemba didn't just find issues, they taught us how to think about security.
Alvin Allen
Head of Cybersecurity · FRONTSTEPS
Customer
★★★★★
Powerful all-in-one solution.
Uncovered assets we missed. Risks validated in hours, not weeks.
Arun C.
Verified · G2
G2
★★★★★
Great end-to-end tool for small teams.
Structured reports within minutes. Zero heavy overhead.
Mevin B.
Verified · G2
G2
★★★★★
Great end-to-end security platform.
Immediate visibility. Speed and ease of use, all in one.
Anandu N.
Verified · G2
G2
★★★★★
"Pentesting on steroids."
Continuous, automated, and actually actionable.
Security Professional
LinkedIn Review
LinkedIn

Questions we hear before every demo

Does attack surface mapping require agents or network credentials?
No. It's entirely non-intrusive. Give it a root domain and it works outward, mapping subdomains and connected infrastructure, cross-referencing historical DNS data to catch infrastructure your team assumed was long gone, then confirming what's still reachable today. Nothing is installed on your systems.
Does attack surface mapping cover subsidiaries or M&A due diligence?
Yes. Subdomain discovery from a root domain runs continuously, including abandoned infrastructure surfaced through historical DNS. Subsidiaries can be added as additional root domains, giving you full coverage across your corporate footprint, useful for M&A due diligence and understanding what you actually own.
How does vulnerability prioritization actually reduce noise?
Every finding is correlated against live exploit intelligence and reachability, not scored on CVSS alone. A critical-severity finding with no reachable path is ranked below a medium-severity finding sitting behind an exposed admin panel, so your team spends time on what's genuinely attackable.
Is it safe to run autonomous testing against a live production site?
Yes. Autonomous testing is safe for production and won't perform destructive tests like DoS. Authenticated scans that touch sensitive workflows are best run against staging. It handles OTP, custom login scripts, CAPTCHAs, and modern JavaScript-heavy apps without recorded login scripts.
Can it test what's behind our login, including MFA?
Yes, and without you recording a login script. It uses AI to work through OTP and MFA flows, custom login forms, CAPTCHAs, and JavaScript-heavy single-page apps, then attaches screenshots proving the session actually authenticated before testing began. Most scanners stop at the login page and report a clean result for everything they never reached. Authenticated runs that touch sensitive workflows are best pointed at staging.
What happens if our WAF or rate limiter blocks the test?
Smart WAF Evasion Detection monitors network responses continuously during a run and alerts you the moment a firewall or rate limiter starts blocking test payloads. The test fails rather than completing and reporting a false all-clear. You then apply throttling to match your rate limits and run it again.
What do you need from us to test authorization and IDOR?
Your API spec and two IDs. Point it at an OpenAPI, Swagger, or Postman file, and it works out which endpoints are worth testing, then asks for one object ID you own and one you shouldn't be able to reach. Every confirmed hit comes back with the evidence your engineers need to reproduce it before they fix it.
Does testing run inside our CI/CD pipeline, and can a failing run gate a build?
Testing runs inside CI/CD, so each release is validated on the way out instead of weeks after it ships. Runs are non-destructive and throttled by default, with no DoS-style testing; deeper testing is opt-in and confined to a window you set.
Is this the same as a penetration test?
No, though they're complementary. Attack surface mapping and autonomous testing run continuously and automatically, telling you what exists, what's exposed, and what's exploitable. Expert-led testing goes deeper on a scoped set of assets: a certified tester actively attempts to exploit a vulnerability to prove real-world impact, including business logic and adversarial AI attacks automation can't reach.
What's the difference between the automated capabilities and expert-led testing?
Attack surface mapping finds every internet-facing asset you own, including the ones you forgot about. Vulnerability assessment ranks and prioritizes findings against your real environment. Autonomous penetration testing actively attacks your apps, payload by payload, to prove what's exploitable. Expert-led testing brings in certified humans for the adversarial depth, business logic, and AI attack surface automation can't reach. All four share one login, one risk model, and verified closure.
How do you test an LLM app, AI agent, or MCP server?
MCP servers are a first-class asset type, so you register, scope, and track them alongside your APIs and web apps. Testing them today is expert-led, as is the rest of the AI attack surface: prompt injection (direct and indirect), agentic privilege escalation, RAG pipeline and data leakage, model extraction, and the full OWASP LLM Top 10. If autonomous MCP testing is what you're planning around, talk to us about timing.
What can an AI assistant do through Siemba's MCP server?
The same actions your team has permission to take: start a scan, pull findings, check a run's status, scope an engagement. Every action taken through the integration is logged against the user, so an AI client can't do anything off the record or outside your existing permissions.
What stops a finding from being quietly downgraded or closed?
Duplicates collapse into a single issue rather than being closed individually, and every status or severity change requires a justification and supporting evidence. Deferrals need an expiry date, so nothing sits indefinitely in an accepted-risk state without coming back for review.

Scoped price. Closure included

Two lines, one platform. Here's where each one starts.

Automated capabilities

From $1,000/month

Attack surface mapping, vulnerability assessment, and autonomous penetration testing, with 50 tests per month included. Unlimited automated retesting, included.

Expert-led testing

From $3,000/app

One-time engagements start at $3,000 per application. Full report and verified closure retesting included. Continuous programs priced to your cadence.

Your attack surface is being mapped right now. Make sure it's you first

Book a live walkthrough or run a free scan today. No lengthy contracts, no hidden fees, unlimited automated revalidation included from day one.