Blackbox pentest

@farooqtahir2013

As a seasoned Network and Cybersecurity engineer with over a decade of professional experience under my belt, I have successfully conducted numerous black box penetration tests on web-based applications. I am adept at simulating real-world external attacker scenarios and conducting assessments based on recognized industry best practices for web application security. My extensive toolkit of skills includes authentication, authorization, session management, input validation, APIs, and business logic testing which are all critical to assessing the security of your app. Leveraging both my strong knowledge base and practical experience, I can guarantee a comprehensive assessment of not only identified vulnerabilities but also suggestions for their remediation. Having worked with small to enterprise-sized companies in the past, I fully grasp the complexity and risks that surround information systems. This is why my work never compromises on safety - it encompasses meticulous vulnerability identification and techniques that ensure no data is compromised during testing. My promptness, 24-hour availability and commitment to quick response time has always ensured timely project delivery. By picking me, you will be selecting a reliable partner in your pursuit of a secure web application. Let's safeguard your system together!

@zainulhassan1695

Hi, I can conduct a structured black box penetration test simulating a real-world external attacker against your publicly accessible web application. Scope will include authentication, authorization, session management, input validation, APIs, and business logic abuse. Testing will follow OWASP methodology and industry best practices, focusing on safe validation without service disruption. Approach: • Recon & attack surface mapping • Auth bypass, privilege escalation, session attacks • Injection testing (SQLi, XSS, IDOR, SSRF, etc.) • API security assessment • Business logic and workflow abuse testing • Secure validation of confirmed vulnerabilities Deliverables: • Detailed report with severity (CVSS-based), risk impact, and executive summary • Step-by-step reproduction details • Evidence (screenshots / request-response samples) • Clear remediation guidance • Optional retest after fixes Estimated effort: 5–7 working days Ready to start immediately upon scope confirmation and written authorization.

@muhammadsm7

Hi, I'm a Cyber Security Researcher with practical experience gained through playing CTFs (Capture The Flag), engaging in Bug Bounties, and working as a Pentester. Notice: Don’t ask me to hack something u don’t OWN What I can do for you: Web/API/Android (OWASP TOP 10) Pentesting: You can also get this service from here: https://www.freelancer.com/service/web_security/web-app-penetration-test-owasp-top Lets Chat…

@deairreom

Dear Client, How are you? I hope this proposal finds you well. I'M A CERTIFIED & EXPERIENCED EXPERT This is to inform you that I have KEENLY gone through your project description, CLEARLY understood all the project requirements as instructed in your project proposal and this is to let you know that I will perfectly deliver as desired. Being in possession of all stated required skills as this is my field of professional specialization having completed all certifications and developed adequate experience in the respective field, I hereby humbly request you to consider my bid for professional, quality and affordable services that meet all your requirements. I always guarantee timely delivery and unlimited revisions where necessary hence you are assured of utmost satisfaction when working with me. Please send me a message so that we can discuss more and seal the project. WELCOME.

@saadirfankk

As a professional and skilled Frontend Developer, I fully understand the importance of robust web security. In order to deliver the best possible user experiences, it's essential to ensure that your application remains secure across all fronts , be it authentication, session management, APIs or business logic. My extensive experience in crafting secure and performant websites can be channeled into conducting an exhaustive black-box penetration test for your web application. Keeping in mind your need to simulate real-world external attacker scenarios, my project plan incorporates proven industry best practices to identify and safely validate any security vulnerabilities. The comprehensive approach I bring will allow me to classify each finding with its severity and ascertain their risk impact. Moreover, my penchant for crafting clean code means that I can provide you with detailed reproduction steps, solid evidence, and effective remediation recommendations for every vulnerability found during the testing. Lastly, beyond just identifying vulnerabilities, I believe in creating value from them - which is why my detailed test reports also include efficient strategies and measures to tackle each issue identified. I understand that budgeting and scheduling are important aspects of any project , at your convenience. You won't just get a checklist of shortcomings; you will get a complete tailored roadmap towards fortifying your web

@growwithgdp

✅ I will perform a comprehensive black-box penetration test simulating real-world external attack scenarios. ✅ Coverage includes auth, session management, APIs, input validation, and business logic vulnerabilities (OWASP Top 10). ✅ I’ll deliver a detailed report with severity, PoC, evidence, and remediation steps. ✅ Timeline: 5–7 days with clear updates and structured documentation.

@daxm0

Hello, I can assist right away. I understand your project details. I will follow instructions and keep you updated. I am an experienced and specialized freelancer with 5+ years of practical experience in Website Testing. I have a few questions before we get started. Could you please send me a message in the chat? If this sounds good, connect in chat and we can start. Thanks, Dax Manning

@BlocKeyFi

Hi, I understand that you are seeking a black box penetration test for your web-based application. With my expertise in cybersecurity, I can provide a comprehensive assessment that simulates real-world external attacker scenarios. I will thoroughly cover authentication, authorization, session management, input validation, APIs, and business logic to identify and validate any security vulnerabilities discovered. My approach will follow recognized industry best practices for web application security, ensuring a detailed report with severity classification, risk impact, reproduction steps, evidence, and remediation recommendations for each finding. I am committed to delivering high-quality results that prioritize the security of your application. I have experience in conducting similar assessments and can assure you of professional standards and reliable execution. I look forward to discussing your requirements further and addressing any concerns you may have. Best regards, Taneem

@mahamnoornaz06

Hello sir, simulating a real-world external attacker without source code access. With 5+ years of experience in web security assessments, I follow OWASP and industry best practices to evaluate authentication, authorization, session management, APIs, input validation, and business logic. I safely validate vulnerabilities and deliver a detailed report with severity ratings, risk impact, reproduction steps, evidence, and remediation guidance. Do you have a staging environment for testing? Are there any IP restrictions or testing windows? We can engage in a 10-15 minute discussion via messages to delve deeper into the project requirements and cover all aspects. Best regards,

@aimansulaiman

❤️ Hello. I understand that you require a black box penetration test of your publicly accessible web application, simulating a real-world external attacker with no access to source code or internal documentation. Practically, your goal is to identify exploitable vulnerabilities before malicious actors do — ensuring your authentication flows, session handling, APIs, and business logic are secure prior to wider exposure or compliance review. I will conduct the assessment following recognized industry standards (OWASP methodology), covering: ✔ Authentication & authorization weaknesses ✔ Session management flaws ✔ Input validation & injection risks ✔ API security testing ✔ Business logic abuse scenarios Estimated effort: 5–7 business days depending on scope size Timeline: Initial findings within 3–4 days, full report upon completion Pricing: 250 I am very interested in this engagement because I take application security seriously and approach each test as if I were protecting my own platform. My focus is thoroughness, clarity in reporting, and actionable remediation guidance — not just scanning, but meaningful security validation. Thank you for reading.

@serhiih25

----------------------- ✅✅✅✅✅ Ready To Support You Fully ✅✅✅✅✅ ----------------------- Hello! I understand you need a black box penetration test simulating an external attacker on your publicly accessible web application, including authentication, session management, input validation, APIs, and business logic. I follow recognized industry best practices (OWASP Top 10, PTES) to identify vulnerabilities, safely validate them, and document each with reproduction steps, evidence, severity classification, risk impact, and actionable remediation guidance. My approach ensures comprehensive coverage while maintaining the safety and integrity of your live application. I can provide a clear estimate of effort, pricing, and timeline once I understand the scope and size of the application. The final deliverable will be a detailed, professional security assessment report suitable for your technical team or auditors. Let’s secure your application and provide you with actionable insights for immediate improvements.

@mehranriaz0

Greetings, I appreciate the opportunity to assist with your black box penetration testing needs for your web-based application. You're looking for a thorough assessment that mimics real-world attacks, focusing on key areas like authentication, session management, and input validation. My approach involves meticulously testing your application without any internal knowledge, ensuring that I can uncover vulnerabilities that an external attacker might exploit. With experience in penetration testing and risk assessment, I will identify security weaknesses and document them in a detailed report. This will include severity classifications, reproduction steps, and actionable remediation recommendations to strengthen your application's security posture. I’m committed to following industry best practices to ensure a comprehensive evaluation. Best regards, Mehran Riaz

@apkblack17

Hiring a security professional with diverse proficiency across web, desktop, and mobile applications is strategic for a comprehensive black box penetration test like yours. My name is Aditya and I am your best choice for this project. With over two years in professional web development and design, I've built numerous robust ERP systems specifically tailored to different industries and their unique needs. For instance, in the mining industry, my application withstood authentication, authorization, session management - all of which are critical areas we'll be testing in your scenario. In addition to a profound understanding of core programming languages such as PHP and Python that powers your platform, I’ve also mastered Django framework which will prove incredibly helpful for this project, as I can gauge how any potential vulnerabilities may be leveraged within your system's business logic. Upon completion of the testing phase, my meticulous personality will shine through as I will put forth a detailed and actionable report with an emphasis on severity classification, risk impact analysis, reproduction steps alongside evidence for transparent remediation plans. My experience with various databases like MySQL and PostgreSQL also significantly helps in this sensitive line of work. My bidding is always fair and reasonable in relation to the effort deployed and duration. So let’s get started!

@billybryan98

Hello [ClientFirstName], I hope you are doing well. I’m a security tester with strong experience in external, black-box web app assessments. I simulate real-world attackers to evaluate authentication, authorization, session handling, input validation, APIs, and business logic. I deliver clear, risk-based findings and practical fixes, even when no source code or internal docs are available. In similar engagements I’ve identified critical issues in publicly reachable apps, crafted robust test plans, and produced detailed reports with severity classifications, evidence, reproducible steps, and remediation recommendations, all aligned with industry best practices. I can handle this engagement end-to-end, from scoping to final reporting, including an estimate of effort, pricing, and timeline. I will provide a thorough, actionable report with reproduction steps, evidence, and prioritized remediations to reduce risk quickly. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards,

@dataspro

Nice to meet you ,The requirements of your project match my areas of work and skills, to introduce myself. My name is Anthony Muñoz and i am the lead engineer for DS Pro IT agency. I have worked for over 10 years as a Full-Stack and software development engineer and have successfully done multiple jobs. It will be a pleasure to work together to make your project. Feel free to discuss about the project with me, greetings.

@nadiad382

Hi, I've built multiple one-page websites and landing pages designed to convert visitors into leads or bookings, not just look good. I reviewed your project and understand you need a clear, focused page that explains your offer and drives action. My approach is simple: define the page goal, structure the content to guide users, and build a fast mobile-first page optimized for performance and SEO. I avoid bloated designs and focus on clarity, speed, and results. I can start with a clear section layout highlighting your black box penetration testing services, detailing scope, methodology, and deliverables clearly. Happy to discuss your goals and timeline. Nadia