What A06:2025 Insecure Design requires
OWASP Top 10:2025 A06:2025 Insecure Design. Insecure design is a broad category representing different weaknesses, expressed as "missing or ineffective control design." Insecure design is not the source for all other Top Ten risk categories. Note that there is a difference between insecure design and insecure implementation. We differentiate between design flaws and implementation defects for a reason, they have different root causes, take place at different times in the development process, and have different remediations. A secure design can still have implementation defects leading to vulnerabilities that may be exploited. An insecure design cannot be fixed by a perfect implementation as needed security controls were never created to defend against specific attacks. One of the factors that contributes to insecure design is the lack of business risk profiling inherent in the software or system being developed, and thus the failure to determine what level of security design is required. This category sits within the OWASP Top 10:2025 (the 2025 edition, finalized January 2026), the canonical industry list of the ten most critical web application security risks. Organizations building web applications should treat each of the ten categories as both a design constraint and a continuous-monitoring obligation, with policies, automated testing, and incident response procedures defined per category. Mapped weaknesses: CWE-73, CWE-183, CWE-256, CWE-266, CWE-269, CWE-286, CWE-311, CWE-312, CWE-313, CWE-316, CWE-362, CWE-382, and others.
Pillar: Cybersecurity · Authority: OWASP Foundation (Open Worldwide Application Security Project) · Version: 1.0.0 · Last updated:
Primary source: https://owasp.org/Top10/2025/A06_2025-Insecure_Design/
SHA-256 integrity: 2d65e3d265593c0d90b3fa09f2e16eedb9997acc39783c0dd7871c2557b195b6
Primary Citations — 13 traced to source
- OWASP Top 10:2025, A06:2025 Insecure Design, How to Prevent: 'Establish and use a secure development lifecycle with AppSec professionals to help evaluate and design security and privacy-related controls'
- OWASP Top 10:2025, A06:2025 Insecure Design, How to Prevent: 'Establish and use a library of secure design patterns or paved-road components'
+ 11 more citations (full bibliography, deterministic workflow, actionable schema and crosswalks) included in the vault unlock — $0.01 via Skyfire / L402 / Direct Base USDC.
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