The best vulnerability scanner for a startup without a security team is one that runs automatically, covers your entire external attack surface, and tells you what to fix in plain English — without needing anyone to interpret a CVE dump. Warin is built specifically for this use case, covering web app scanning (OWASP Top 10), network scanning, subdomain discovery, SSL/TLS monitoring, and email breach monitoring in one platform starting at $49/month. For founders who want to evaluate all realistic options before committing, here is the complete 2026 breakdown.
What makes a vulnerability scanner right for a startup without a security team?
Most vulnerability scanners are designed for enterprise security teams: they output raw CVE lists, assume you know what a CVSS 9.8 score means in practice, and require someone to schedule scans, triage findings, and research remediation steps. That model breaks immediately when nobody on the team has a security background.
A startup-appropriate vulnerability scanner needs five things:
- Continuous and automated — scans run without anyone scheduling them or pressing a button after each deploy.
- Full attack surface coverage — web applications, open ports, subdomains, SSL/TLS certificates, and credential exposure, not just one layer.
- Severity-based prioritization — so two hours a week goes to the one critical issue, not twelve medium-severity theoretical risks.
- Plain-English remediation — any engineer on the team can follow the fix without a security background.
- Startup-appropriate pricing and setup — not a six-figure enterprise contract requiring months of implementation.
Tools that score well on technical depth but poorly on usability are only useful if someone experienced is running them. The right tool for a startup is the one that actually runs — and whose output actually gets acted on.
The best vulnerability scanners for startups in 2026
The options below represent the realistic choices across the market — from platforms purpose-built for small teams to enterprise tools included here for completeness. Several are designed for organizations with dedicated security staff; this guide is explicit about where that line is.
Comparison table
| Tool | Web App (DAST) | Network Scanning | Asset & Subdomain Discovery | SSL / TLS | Breach Monitoring | Fix Guides | Starting Price | Expertise Required |
|---|---|---|---|---|---|---|---|---|
| Warin | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | $49/mo | Minimal |
| Intruder | ✓ | ✓ | Pro tier only | Partial | ✗ | Partial | $149/mo | Low–Moderate |
| Detectify | ✓ | ✗ | Separate product | Partial | ✗ | Partial | From €90/mo | Moderate |
| Burp Suite Enterprise | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ | Not public | High |
| Qualys | ✓ | ✓ | ✓ | Partial | ✗ | ✗ | Not public | Very High |
| Rapid7 | ✓ | ✓ | ✓ | Partial | ✗ | ✗ | From $1.62/mo/asset | Very High |
| Tenable Nessus Pro | ✗ | ✓ | ✗ | ✗ | ✗ | ✗ | $4,790/yr | High |
| Tenable Nessus Expert | ✓ | ✓ | ✓ | ✗ | ✗ | ✗ | $6,790/yr | High |
Pricing sourced from public vendor pages at time of publication. Verify current details on each vendor’s website before purchasing.
Warin — $49/mo Starter, $99/mo Pro
Best for: Startups and SaaS founders without a dedicated security team who need continuous coverage across every layer of their attack surface.
Warin is an external attack surface management (EASM) platform built specifically for small teams. Rather than a single-layer scanner that produces a CVE dump, Warin runs continuous automated scans across every external exposure your startup has — and tells you what to fix in plain English.
What Warin covers:
- Web application scanning — continuous DAST testing for OWASP Top 10 vulnerabilities: SQL injection, XSS, broken access control, security misconfigurations, and more. Scans run from the outside; no code access or SDK installation required.
- Network scanning — maps every open port and exposed service across your public IPs, fingerprints service and software versions, and alerts on unexpected changes between scan cycles.
- Subdomain discovery — continuously enumerates every subdomain under your domain using DNS enumeration and certificate transparency logs, including forgotten staging environments and old dev subdomains.
- SSL/TLS monitoring — checks cipher suites, protocol versions (TLS 1.0/1.1/1.2/1.3), certificate chain integrity, HSTS enforcement, and known TLS vulnerabilities — not just expiry dates.
- Email breach monitoring — watches your team’s email addresses against continuously updated breach databases and alerts immediately when credentials are exposed in a third-party breach.
- Risk prioritization — scores every finding by severity combined with asset context (production vs. staging, customer-facing vs. internal) so your priority queue reflects real-world risk, not a flat CVE list.
- AI fix guides — one-click plain-English remediation instructions tailored to the specific issue and your stack. Any engineer can follow them without prior security experience.
The Starter plan (5 assets, 3 users — $49/month) and Pro plan (25 assets, 10 users — $99/month, 14-day free trial) both include the same full capability set: unlimited manual and automated scanning, unlimited email breach monitoring, unlimited AI-powered fix guides, risk scoring and dashboard, and alerts and reporting. There are no locked features behind the higher tier — only asset and user count differ.
Intruder — From $149/mo (Essential)
Best for: Startups and SMBs that want automated web and network scanning across multiple scanning engines without heavy setup.
Intruder is a cloud-based vulnerability scanner built for businesses without large security teams. It runs over 160,000 checks using multiple scanning engines — OpenVAS on the Essential plan, with the Tenable engine added on Cloud and the Nuclei engine added on Pro — covering infrastructure vulnerabilities, web application security (75+ checks including SQL injection and XSS), API security, and cloud configuration issues daily.
A standout feature is Emerging Threat Scans: when a new high-severity CVE is published, Intruder automatically re-scans your targets for that specific vulnerability without waiting for your next scheduled scan cycle.
Plan tiers and pricing:
Intruder publishes plan feature details on their pricing page. Their Essential plan (described as “Best for startups looking to stay compliant”) is priced at $149/month (or $119/month if billed annually) and includes 5 infrastructure licenses and 0 application licenses — an infrastructure license covers an IP, domain, server, or employee device you want scanned, while an application license covers a custom web app or API you want to run DAST scans against. Because the Essential plan ships with zero application licenses, web app and API scanning require purchasing application licenses on top, and adding more assets means buying more infrastructure licenses. The Essential plan includes:
- 1 scheduled scan per month
- Unlimited ad hoc scans
- Issues enriched with enhanced risk data
- Unlimited users
- External/infrastructure scanning (5 licenses); web application and API (DAST) scanning via paid application licenses (0 included)
- Cloud environment scanning (daily), container image scanning
- OpenVAS scanner, Smart Recon, cloud sync
- Network scans (monthly), Emerging Threat Scans, remediation scans
- Compliance integrations (Vanta, Drata)
- Slack, Teams, Jira, GitHub, GitLab, ServiceNow, and other integrations
Higher tiers (Cloud, Pro, Enterprise — pricing not publicly listed) add features progressively: unlimited scheduled scans and the Tenable scanning engine on Cloud; subdomain discovery, internal network scanning, and the Nuclei engine on Pro; unknown asset discovery and 1,000+ attack surface checks on Enterprise.
Key caveats:
- Subdomain discovery is only available on the Pro tier and above — not included on Essential or Cloud.
- Internal network scanning requires Pro or Enterprise.
- Remediation guidance is included in findings but is not AI-generated step-by-step — it provides context alongside the vulnerability, not a dedicated guided fix workflow.
Detectify — From €90/mo (products sold separately)
Best for: Startups with an AppSec-focused developer who want high-confidence external web application scanning with low false positives.
Detectify is a DAST and surface monitoring platform focused entirely on your external attack surface. Its key technical differentiator is payload-based testing rather than signature-based scanning: instead of looking for patterns that resemble known vulnerabilities, Detectify sends real payloads to confirm exploitability. This approach significantly reduces false positives — you see fewer alerts, but the ones you see are confirmed issues.
Detectify sells three separate products, each priced independently:
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Surface Monitoring — from €302/month (up to 25 subdomains): Maps your domains, IPs, ports, web apps, APIs, and tech stack. Tests your attack surface for stateless vulnerabilities including CVEs and DNS-level issues — with over 600 DNS Takeover tests. Also surfaces recommendations on which web applications and APIs you should be actively scanning.
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Application Scanning — from €90/month (1 domain): Runs authenticated scanning by crawling your application with Detectify’s proprietary fuzzing engine. Backed by an extensive, continuously updated library of CVE and non-CVE tests, fuelled by their AI agent Alfred and the Crowdsource community of ethical hackers.
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API Scanning — from €90/month (1 API): Goes beyond static checks with a dynamic engine that randomizes payloads to find vulnerabilities others miss. Tests on a massive scale with quintillions of payload variations, designed to find real exploits rather than generate false positives. Provides a unified view across your API attack surface with broad, research-led vulnerability coverage.
The base entry cost for all three products combined is €482/month (25 subdomains + 1 domain + 1 API). Each product scales per unit — more subdomains, domains, or APIs you need monitored increases the price accordingly. Each product can also be purchased independently if you only need one layer of coverage.
What Detectify does not cover (across all products):
- Network/port scanning — explicitly outside their scope
- Internal network assessment — external-facing assets only
- Email breach/credential monitoring
- Patch-level compliance auditing
- SSL/TLS configuration depth beyond basic checks
Setup involves domain ownership verification and is more involved than plug-and-play alternatives. Detectify’s model assumes a developer or AppSec practitioner who owns the scanning workflow.
Burp Suite Enterprise — Pricing not publicly listed
Best for: Organizations with a mature security team that has already inventoried their applications and wants deep, customizable DAST on known assets.
Burp Suite Enterprise is the commercial, scalable version of the industry-standard Burp Suite web application testing tool by PortSwigger. It automates Burp’s scanner across unlimited targets with unlimited users, CI/CD integration, and enterprise-grade reporting.
What Burp Suite Enterprise covers:
- Web application DAST: XSS, SQL injection, CSRF, XXE, directory traversal, SSRF, and more
- Out-of-band vulnerability testing (a genuine technical strength)
- CI/CD pipeline integration (Jira, GitLab, Trello)
- Granular scan customization for mature security teams
- Self-hosted deployment
What Burp Suite Enterprise does not cover:
- Network/port scanning — not in scope
- Asset or subdomain discovery — you must manually define every application to scan
- SSL/TLS configuration analysis
- Email breach/credential monitoring
- Remediation guidance beyond standard security documentation
The “inside-out” model is Burp’s design philosophy: it assumes you already know what you want to scan and need maximum control over how you scan it. That’s a strength for an enterprise team with an existing asset inventory. For a startup where nobody knows what subdomains exist or what’s exposed, it’s a significant limitation — you can’t scan what you haven’t manually told it about.
Pricing is not public. PortSwigger lists subscription options on their pricing page (not included in the URLs provided) but does not publish specific prices.
Qualys — Pricing not publicly listed
Best for: Large enterprises with dedicated security programs needing unified vulnerability management across internal infrastructure, cloud workloads, and compliance requirements.
Qualys is a comprehensive enterprise security platform with over 20 integrated applications — VMDR (Vulnerability Management, Detection, and Response), External Attack Surface Management, Cloud Workload Protection, Container Security, Patch Management, Policy Compliance, and more. The platform processes 9+ trillion data points annually across 6+ billion IPs and holds FedRAMP High Authorization, making it relevant for government and regulated industries.
What Qualys covers:
- External attack surface management and asset discovery
- Vulnerability management across internal infrastructure, cloud, and endpoints
- Web application scanning (included in the platform)
- Cloud security posture management
- Patch management
- Compliance auditing (PCI DSS, SOC 2, and others)
- “Agentic AI” for autonomous vulnerability validation
What to know about limitations:
- Qualys uses primarily signature-based scanning, which tends to generate high volumes of findings requiring triage — more false positives compared to payload-based tools like Detectify.
- The interface is complex and requires significant training. Third-party comparisons consistently flag the learning curve as a barrier.
- Business application mapping requires substantial manual effort.
- This is not a startup tool. Qualys reports serving the majority of the Forbes Global 100 and Fortune 100 as customers. It’s included here for completeness and because founders sometimes encounter it in enterprise vendor security questionnaires.
Pricing is not publicly disclosed. Qualys requires a sales conversation for any pricing information.
Rapid7 — From $1.62/mo per asset (products priced separately)
Best for: Mid-market and enterprise organizations running a Security Operations Center (SOC) that need correlated visibility across application vulnerabilities, infrastructure risk, and threat intelligence.
Rapid7 is a security platform company offering a suite of products. Their model correlates application flaws with broader infrastructure risk — useful for organizations that need a unified view across their entire environment.
Published pricing (per Rapid7’s pricing page):
- InsightVM (vulnerability risk management): from $1.62/month per asset (based on 500 assets)
- InsightAppSec (web application DAST): from $175/month per app
- InsightCloudSec (cloud security): from $5,775/month for up to 500 instances
All plans include unlimited user accounts, single sign-on, 24/7 technical support, and a customer success team.
Getting both vulnerability management and web application scanning means combining InsightVM + InsightAppSec, which starts at several hundred dollars per month before cloud security is added.
What Rapid7 covers:
- Web application DAST via InsightAppSec
- Infrastructure vulnerability management via InsightVM
- Attack surface and asset discovery via Surface Command and Project Sonar
- Threat intelligence via Threat Command (AttackerKB integration)
- Managed detection and response, SIEM, and cloud security
What to know about limitations:
- Rapid7 is a collection of modular products — getting comprehensive coverage requires purchasing multiple components at separate per-product pricing.
- Their DAST engine (InsightAppSec) has been noted in comparisons to struggle with modern single-page applications, and the discovery-to-scan workflow for newly identified assets is not fully automated.
- This is an enterprise-scale platform requiring significant resources to implement and operate. It is not appropriate for a startup without a dedicated security function.
Tenable Nessus — From $4,790/year (Professional) or $6,790/year (Expert)
Best for: Network penetration testers, cybersecurity consultants, and security-conscious SMBs that need comprehensive infrastructure vulnerability scanning.
Nessus is one of the most widely deployed vulnerability scanners in the world, built around network and infrastructure scanning: assessing servers, operating systems, devices, and applications for CVEs, misconfigurations, and patch-level compliance.
Tenable sells Nessus in two editions with publicly listed pricing, plus separate products for web app scanning and broader vulnerability management:
Nessus Professional — $4,790/year (1-yr) · $9,330.95 (2-yr) · $13,637.54 (3-yr)
- Real-time vulnerability updates
- Unlimited vulnerability scanning (network/infrastructure)
- Pre-built policies for configuration and compliance audits
- Vulnerability scoring (CVSS v4, EPSS, VPR)
- Configurable reports
- Flexible deployment (install on your own host)
- Does not include web application scanning or external attack surface discovery
Nessus Expert — $6,790/year (1-yr) · $13,208.13 (2-yr) · $19,304.19 (3-yr)
- All Nessus Professional features, plus:
- Web application scanning
- External attack surface discovery scanning
Other Tenable products (also publicly priced):
- Tenable Vulnerability Management — $3,700/year for up to 250 assets (cloud-based VM platform)
- Tenable Web App Scanning — $6,790/year for 5 FQDNs (dedicated web app scanning product)
- Advanced Support add-on: $400/year
What Nessus does not cover (across all editions):
- Email breach/credential monitoring
- SSL/TLS configuration analysis (cipher suites, protocol deprecation, HSTS)
- AI-generated remediation guidance
Key limitations for startups: Nessus Professional has no web application scanning at all — that requires the Expert edition ($6,790/yr) or the separate Web App Scanning product ($6,790/yr for 5 FQDNs). The core strength of both editions remains internal infrastructure. The tool also requires technical expertise to install, configure, and interpret results effectively.
What should a startup vulnerability scanner cover?
Many scanners cover only one layer of your attack surface. A critical exposure in any of the six areas below can be the entry point for a breach — and most startup breaches start at layers that single-purpose scanners miss entirely.
1. Web application scanning (DAST)
Tests your running web applications for OWASP Top 10 vulnerabilities — SQL injection, cross-site scripting (XSS), broken access control, security misconfigurations, and more. Dynamic testing runs from the outside, the same way an attacker probes your app, and finds runtime vulnerabilities that static code analysis misses. Look for payload-based DAST (confirms exploitability) over signature-based scanning (identifies patterns, higher false positive rate).
2. Network and port scanning
Finds open ports and exposed services across your public IPs. An SSH service reachable from anywhere, a database admin panel on a public IP, an Elasticsearch instance with no authentication — these are network-layer exposures that web app scanners don’t reach. Network scanning fingerprints what software is running on each open port and alerts when exposure changes after a deploy or cloud configuration update.
3. Subdomain and asset discovery
Maps every subdomain under your domains — including staging environments, old campaign pages, and dev subdomains nobody shut down. Subdomain enumeration is standard reconnaissance in most attacks because forgotten subdomains are often less secure than production and still reachable. Look for continuous discovery, not one-time setup; new subdomains appear constantly as you deploy. Importantly, check whether asset discovery is included in the base plan or reserved for enterprise tiers — it varies significantly across vendors.
4. SSL/TLS configuration
A valid certificate is not the same as a secure TLS configuration. Weak cipher suites, deprecated protocol versions (TLS 1.0, 1.1), missing HSTS, and incomplete certificate chains allow traffic interception even when the browser padlock icon is green. SSL/TLS issues also appear on every enterprise security questionnaire — catching them early means fixing them at your own pace, not under prospect pressure. Not all scanners in this comparison cover TLS configuration; check the table above.
5. Email breach monitoring
When a third-party service your team uses gets breached, your team’s email/password pairs appear on credential lists within hours. Automated tools test those credentials against hundreds of other applications immediately — including your own. Of the tools compared here, only Warin includes this capability. See: Credential Stuffing Explained: How Attackers Weaponize Third-Party Breaches Against You
6. Risk prioritization and fix guides
A scanner that produces 150 findings of equal urgency is not useful without a security team to triage them. Severity scoring combined with asset context (production vs. staging) produces a single prioritized queue. AI-generated fix guides translate each finding into step-by-step instructions any engineer can follow — removing the research burden from remediation entirely. This is the capability that most separates startup-focused platforms from enterprise tools.
For a broader look at mapping and securing your full attack surface: External Attack Surface Management: The Complete Guide for SMBs
How much does vulnerability scanning cost for a startup?
Several tools in this comparison publish pricing publicly; others require a sales conversation.
| Tool | Publicly Listed Pricing | Notes |
|---|---|---|
| Warin | $49/mo Starter · $99/mo Pro | 14-day free trial on Pro |
| Intruder | $149/mo (Essential; $119/mo billed annually) — 5 infrastructure + 0 application licenses · Cloud/Pro/Enterprise prices not public | 14-day free trial available |
| Detectify | From €90/mo/domain (App Scanning) · €90/mo/API (API Scanning) · €302/mo for ≤25 subdomains (Surface Monitoring) | Products sold separately; base entry for all three = €482/mo |
| Burp Suite Enterprise | Not public — contact sales | Enterprise subscription model |
| Qualys | Not public — contact sales | Enterprise contracts typical |
| Rapid7 InsightVM | From $1.62/mo per asset | Web app scanning (InsightAppSec) priced separately at $175/mo/app |
| Tenable Nessus Pro | $4,790/year | Expert (adds web app + EASM): $6,790/year |
| Tenable Web App Scanning | $6,790/year | Standalone product for 5 FQDNs |
The cost of not scanning is substantially higher than any line item above. According to IBM’s Cost of a Data Breach Report 2024, the average cost of a data breach is $4.88 million globally — an amount that is disproportionately destructive for a startup, where the same incident can trigger customer churn, regulatory fines, and reputational damage that ends the company before Series A.
A $49/month tool that catches one critical vulnerability before it’s exploited is a very high-ROI purchase. The math only looks different if you assume you won’t get breached.
For the full financial picture: The Real Cost of a Security Breach for SMBs
Which tools actually require a dedicated security team?
This comparison spans a wide spectrum — from platforms designed for 2-person founding teams to enterprise suites deployed by Fortune 100 security departments. Not all of them are appropriate for a startup without a security hire.
Require a dedicated security team to operate effectively:
- Qualys — complex platform, steep learning curve, significant training required, manual application mapping burden. Built for enterprise GRC programs.
- Rapid7 — modular suite requiring multiple product purchases, significant implementation resources, and a SOC to act on output. Not a single-platform solution.
- Burp Suite Enterprise — requires manual asset definition (no discovery), self-hosted infrastructure, and deep security expertise to configure and interpret. Designed for mature teams with an existing asset inventory.
- Tenable Nessus Professional — powerful network scanner, but requires technical expertise to install, configure, and interpret results. The $4,790/year price point and infrastructure focus make it more appropriate for a dedicated security function than a founding team.
More accessible without a security background:
- Intruder — designed for startups and SMBs; setup reportedly takes under 10 minutes; good G2 scores for ease of use. Key caveat: subdomain discovery requires the Pro tier ($149/mo gets you the Essential plan without it), and internal network scanning requires Pro or Enterprise.
- Detectify — more accessible than the enterprise tools, but effective use assumes a developer or AppSec practitioner who owns the scanning workflow. Domain verification and initial configuration require more effort than plug-and-play alternatives.
- Warin — built specifically for the no-security-team use case. Enter your domain, Warin discovers subdomains, builds your inventory, and starts scanning. Prioritized findings with plain-English fix guides mean no security expertise required to take action.
The key distinction is between a scanning tool (requires expertise to operate and interpret) and a scanning platform (automates operation, prioritization, and remediation guidance). For a startup without a security team, you need the platform.
How often should a startup scan for vulnerabilities?
Continuously — not quarterly, monthly, or even weekly.
A point-in-time scan tells you what was exposed on the day you ran it. The next day you deploy a new feature, add a subdomain, or misconfigure a cloud security group — and you’re exposed again without knowing it.
Continuous vulnerability scanning catches what periodic scans miss:
- Vulnerabilities introduced by code changes, caught on the next scan cycle rather than at your next scheduled review
- New subdomains added by a deployment, appearing in your inventory automatically
- Ports that opened after a cloud infrastructure change, flagged before an attacker finds them
- SSL certificates approaching expiry, with alerts well before they lapse
- Team credentials exposed in a new third-party breach, indexed within hours and matched against your monitored addresses
Startups change infrastructure faster than a monthly scan cycle can keep up with. Continuous monitoring closes the gap between what you changed and what you know about — automatically, without adding a recurring to-do to your list.
See: Security Monitoring vs. Security Audits: What’s the Difference?
FAQs
What is a vulnerability scanner?
A vulnerability scanner is a tool that automatically tests systems, applications, and networks for known security weaknesses — misconfigured services, unpatched software, exploitable code patterns — and reports them with severity ratings. For a startup, the most useful scanners automate the entire process: asset discovery, scheduling, scanning, prioritization, and remediation guidance.
What’s the difference between a vulnerability scanner and a penetration test?
A vulnerability scanner runs automated checks against known vulnerability patterns continuously and at scale. A penetration test involves a human security tester manually attempting to exploit vulnerabilities, applying creativity and judgment that automated tools cannot replicate. Startups should run continuous automated scanning as a baseline — it’s ongoing and affordable. Penetration tests are a complement, not a replacement, and are typically needed once a year or before major compliance events like SOC 2.
What is signature-based vs. payload-based vulnerability scanning?
Signature-based scanning identifies patterns that resemble known vulnerability types — it’s fast and broad but produces more false positives. Payload-based scanning (used by Detectify, and the methodology behind Warin’s DAST) sends real test payloads to confirm exploitability, producing fewer alerts with higher confidence. For a startup without a security team, fewer false positives matter because there’s nobody to triage noise.
Do I need a vulnerability scanner if my app is hosted on Vercel, Render, or a major cloud provider?
Yes. Your hosting provider secures the infrastructure layer — their servers, network, and physical hardware. Your responsibility is everything above that: your application code, your configuration, your exposed services, your team’s credentials, and your subdomains. A breach of a cloud-hosted app is almost always a vulnerability in the app itself, not in the hosting platform.
What’s the difference between DAST and SAST?
DAST (Dynamic Application Security Testing) scans your running application from the outside — the same way an attacker would — finding runtime vulnerabilities without access to your source code. SAST (Static Application Security Testing) analyzes source code for vulnerable patterns without running the application. DAST finds what is actually exposed and exploitable in production today; SAST finds potential vulnerabilities at the code level. Both are useful; for a startup without a security team, DAST is the higher priority because it tests what’s actually reachable from the internet.
What’s an EASM platform, and how is it different from a vulnerability scanner?
EASM (External Attack Surface Management) platforms discover, inventory, and continuously monitor everything your startup exposes to the internet — not just your main domain, but every subdomain, IP, open port, SSL endpoint, and compromised credential. A traditional vulnerability scanner requires you to tell it what to scan. An EASM platform figures out your attack surface first, then scans it continuously. Warin is an EASM platform that combines discovery with vulnerability scanning, breach monitoring, risk prioritization, and fix guidance in one product starting at $49/month.
How do I know if my startup has already been breached?
Common indicators include unexpected password reset requests, unusual login activity from unfamiliar locations, customer reports of strange account behavior, unexplained data changes, or team credentials surfacing on breach monitoring alerts. Continuous monitoring significantly reduces the time between a breach occurring and you finding out. See: Credential Stuffing Explained: How Attackers Weaponize Third-Party Breaches Against You
Final Thoughts
For a startup without a security team, the right vulnerability scanner is one that runs without you, covers every layer of your external attack surface, and surfaces findings clearly enough that any engineer on the team can act on them. The enterprise tools — Qualys, Rapid7, Burp Suite Enterprise — are powerful but require security expertise and dedicated headcount to operate effectively. Tenable Nessus is strong for infrastructure scanning but not designed for external attack surface coverage without the Expert tier. Intruder and Detectify are more accessible but have coverage gaps depending on which tier or product you buy.
Warin is built for the gap in the middle: continuous external attack surface monitoring — web app scanning, network scanning, subdomain discovery, SSL/TLS analysis, email breach monitoring — with risk prioritization and plain-English fix guides, starting at $49/month.
Want to see what your startup is exposing right now — without reading a scanner manual?
Try Warin — continuous external attack surface monitoring built for founders who ship fast.
Start your 14-day free trial.