Broken Access Control: The Silent Breach Vector

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Most Breaches Come From Too Much Access

Users with admin rights, apps with broad scopes, APIs with no restrictions — attackers don’t need to break in if the doors are already wide open.

Horizontal Privilege Escalation Goes Undetected

If users can access each other’s data without restriction, a compromised low-level account becomes a company-wide exposure — no elevation needed.

Insecure Direct Object References (IDOR) Are Still Everywhere

Guessable URLs, incremental IDs, and lack of access validation mean attackers can access other users’ files, tickets, or invoices by changing parameters.

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Forgotten Features Remain Unrestricted

Dev tools, beta routes, or deprecated endpoints often lack access checks. Attackers scan for these leftovers and exploit what security forgot.

Permissions Drift Over Time

Users accumulate access as they change roles. Without regular reviews, the least-privilege model degrades into “superuser-by-default.”

Access Control Must Be Explicit and Enforced

Never rely on obscurity or client-side enforcement. Build access checks into backend logic. Review, test, and audit every layer — constantly.

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