PS Product SecurityKnowledge Base

Business Logic Abuse and Product Abuse

Business Logic Abuse and Product Abuse

Section focus: Business Logic Abuse and Product Abuse.
Best use: start with the section map below, then move into the deeper pages that match your role or stack.
Design note: this index was refreshed to act as a cleaner GitBook landing page instead of a plain directory listing.

Start with these pages

Page Why open it first
๐Ÿ‘ค Account Takeover, Automation, and Bot Abuse High-value page inside Business Logic Abuse and Product Abuse.
๐Ÿ’ธ Signup, Trial, Promo, and Business-Flow Abuse High-value page inside Business Logic Abuse and Product Abuse.
๐Ÿงฉ Tenant Isolation, Object-Level, and Workflow Abuse High-value page inside Business Logic Abuse and Product Abuse.

Intro: This section focuses on the abuse patterns that usually hurt revenue, trust, operations, and customer safety at the same time. The point is not only to find broken controls, but to understand which workflows become profitable and scalable when product logic is weak.

What this page includes

  • account takeover and automation abuse
  • signup, trial, promo, and workflow abuse
  • tenant isolation and object-level abuse
  • practical review playbooks for economic and workflow abuse

Section map

Page Why it belongs here
Account Takeover, Automation, and Bot Abuse Covers high-volume abuse against identity and session workflows.
Signup, Trial, Promo, and Business-Flow Abuse Focuses on monetizable self-service abuse.
Tenant Isolation, Object-Level, and Workflow Abuse Connects object access flaws to workflow impact and tenant harm.
Business Logic Abuse Review Playbook Provides a repeatable reviewer workflow for profitable abuse paths.
Rate Limits, Quotas, Friction, and Detection Explains how to make abuse slower, noisier, and easier to detect.
Support, Admin, and Recovery Flow Abuse Covers privileged workflow shortcuts attackers love to exploit.

Design bias

Assume that the attacker will script the workflow, distribute attempts, and look for operational shortcuts rather than only technical bugs.


Author attribution: Ivan Piskunov, 2026 - Educational and defensive-engineering use.

Strong companion page