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OWASP Top 10 Explained for Founders: The Web Security Risks That Matter

Short answer

The OWASP Top 10 is a widely used list of the most critical web application security risks, led by broken access control, cryptographic failures and injection. For founders, the practical meaning is: check who can access what, protect data and secrets, validate input, keep dependencies updated and log what happens. The 2021 list is widely cited; check owasp.org for the latest edition.

AWI Digital Team 2026-10-06⏱ 3 min read

The list in plain English (2021 edition)

RiskWhat it meansTypical first fix
Broken access controlUsers can reach data or actions they should notServer-side checks on every request
Cryptographic failuresSensitive data is not protected properlyHTTPS everywhere; encrypt sensitive data; strong password hashing
InjectionUntrusted input runs as code or queriesParameterised queries; input validation
Insecure designSecurity was not planned into the featureThreat-model risky flows early
Security misconfigurationDefaults, open storage or debug modes left onHarden configs; remove unused features
Vulnerable and outdated componentsLibraries with known flawsUpdate dependencies; scan regularly
Identification and authentication failuresWeak login, session or password handlingUse proven auth providers and MFA
Software and data integrity failuresUnverified updates or pipelinesLock dependencies; protect CI/CD
Security logging and monitoring failuresAttacks go unnoticedLog key events and alert on anomalies
Server-side request forgery (SSRF)The server fetches attacker-chosen URLsAllow-list outbound requests

Where AI-built apps usually fail

  • Access control: the UI hides things but the API does not check
  • Misconfiguration: open databases and exposed keys
  • Outdated components: copied snippets with old libraries
  • Missing logging: no way to see attacks

Founder’s 10-minute self-check

  1. Try opening another user’s record by changing an ID in the URL.
  2. Search your front-end code for API keys.
  3. Check that the database is not publicly readable.
  4. Confirm HTTPS and secure cookies.
  5. Look at dependency alerts in GitHub.
  6. Make sure admin pages require admin login.

Then book a proper test: see our penetration testing guide.

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Frequently asked questions

Is the OWASP Top 10 a standard?

It is an awareness document widely used as a baseline, not a legal standard.

Will fixing the Top 10 make me secure?

It covers the most common risks, but not everything; pair it with testing and monitoring.

Do you test against OWASP?

Yes. Our security testing is OWASP-aligned.

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