OWASP and the Top 10

OWASP is the industry's shared catalogue of the ways software gets broken into — its Top 10 being the closest thing security has to a periodic table. When a vendor, insurer or auditor wants to know whether your development takes security seriously, this vocabulary is the test.

What It Is

The Open Worldwide Application Security Project (OWASP) is a non-profit producing freely available security knowledge for software; its best-known artefact is the OWASP Top 10, a periodically updated list of the most critical application security risk categories — the injection family, broken authentication, sensitive-data exposure, misconfiguration, vulnerable components, and their peers. The list functions as a lingua franca: development standards reference it, security tooling maps findings to it, questionnaires and audits are structured around it. Beyond the Top 10, OWASP publishes deeper guidance — the Application Security Verification Standard (ASVS) being the notable checklist for what verified-secure means at each rigour level.

Why It Matters to You

For executives, OWASP is the translation layer for security conversations you must have but were not trained for. Asking whether development follows OWASP guidance, whether security testing maps findings to the Top 10, and whether the vendor's last assessment addressed the current edition are all well-formed questions that any competent security practice can answer specifically — and evasions here are diagnostic. Insurers increasingly ask; regulators reference it; acquirers' due-diligence teams arrive with it. The Top 10's real value is prioritisation: it tells a non-specialist organisation which broad classes of defect matter most this decade.

When You'll Meet It

In vendor security reviews, insurance questionnaires, and development standards. Add one line to your standard due diligence: 'is development aligned to OWASP ASVS, and at what level?' — then ask what level of verification is actually tested.