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Oosint78shemkar.hashnode.devApr 26 · 6 min read

One Extra JSON Key: How a Harmless Profile Endpoint Became an ATO Candidate

The harmless profile endpoint that taught me how real bugs work Early in my bug bounty journey, I found a bug that looked simple from the outside, but it changed the way I think about web security. At

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ATAPIVerve Teamapiverve.hashnode.devMar 16 · 6 min read

Business Day Math Is Harder Than You Think

Quick: how many business days are in March 2026? If you answered 22, you skipped weekends but forgot that different countries have different holidays in March. The US doesn't have a federal holiday in March, so 22 is correct there. But India celebrat...

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ZMZeeshan M.z-sec.coJan 16 · 4 min read

Reverse Account Takeover via Email Rebinding Causing Forced Privilege De-Escalation

When we talk about account takeover, we usually imagine a familiar story: an attacker steals credentials, hijacks a session, or abuses password reset flows to log in as someone else. This write-up is about something more subtle — and arguably more da...

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GRGanesh Rama Hegdeandroidavatar.hashnode.devNov 2, 2025 · 4 min read

Chapter 15 - Coding the SearchImageUseCase (Domain layer)

Before we start working on the same blueprint we used earlier for the GetArtUseCase, let us pause for a moment and depict the data flow in the form of a flowchart. This will help gauge the progress of the second use case - SearchImageUseCase. This us...

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AOamin Oujihunteramine.hashnode.devSep 15, 2025 · 3 min read

How I Broke SaaS Economics: Bypassing Seat Limits With a Race Condition

There’s something deeply satisfying about breaking things that are supposed to be “hard limits.” Especially when those limits are the foundation of a SaaS business model. During a recent penetration test, I discovered a critical race condition in a p...

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AOamin Oujihunteramine.hashnode.devSep 14, 2025 · 3 min read

How I Bypassed a Client-Side Limit and Earned a $$$$ Bounty

Introduction Hello everyone! Today, I’m sharing a story about a business logic vulnerability I found in the checkout flow of a major professional networking platform (let’s call it “example.com” to comply with disclosure rules). This bug allowed me t...

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ARAhmed Ramyblog.ahmedramy.meDec 27, 2024 · 7 min read

Patterns: Command + Siri

Yes, it’s me again. I know you’re shocked, so am I. This post totally breaks my record of ‘one-and-done’ blog posts. 🤷‍♂️ I’m seriously surprised I’ve followed through. But hey, whenever the magical words Software Design, Optimization, Time-saving, ...

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ITInformation Technologywhat-does-mean-business-logic-is.hashnode.devOct 18, 2024 · 1 min read

How do experienced developers approach business logic tasks in backend development?

So I just started in this field as a Junior Java Backend Developer. But there is one nuance that scares me. I would like to explain my point like this. For example, Java SE, Java EE, SQL, Docker, Kubernetes, Microservices, etc. I have mastered the kn...

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NBNile Bitsnilebits.hashnode.devSep 23, 2024 · 7 min read

What is Screaming Architecture?

Screaming Architecture is a concept introduced by renowned software developer and thought leader Robert C. Martin, often referred to as "Uncle Bob." The term may sound unconventional, but it represents a powerful principle in software design, focusin...

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ASAshutosh Shuklayogicoder.hashnode.devAug 22, 2024 · 2 min read

Business Logic

Business Logic is the set of rules and processes that define how a business operates. It's the core functionality of a system that determines how data is processed, stored, and presented. In simpler terms, it's the "brain" of a business application. ...

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#business-logic

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Trending tags this week

One Extra JSON Key: How a Harmless Profile Endpoint Became an ATO Candidate

Business Day Math Is Harder Than You Think

Reverse Account Takeover via Email Rebinding Causing Forced Privilege De-Escalation

Chapter 15 - Coding the SearchImageUseCase (Domain layer)

How I Broke SaaS Economics: Bypassing Seat Limits With a Race Condition

How I Bypassed a Client-Side Limit and Earned a $$$$ Bounty

Patterns: Command + Siri

How do experienced developers approach business logic tasks in backend development?

What is Screaming Architecture?

Business Logic