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I need a security partner who can run thorough web application penetration tests, trace and document every vulnerability, and then help me reproduce and patch the issues. Alongside that primary task, you will be called on to investigate past or ongoing security breaches and dig into a small batch of persistent spam-caller incidents that appear linked to the same threat actor. Solid OSINT technique is a big plus here because many leads will start with only a phone number or a username. Your day-to-day work will include hands-on testing with tools such as Burp Suite, OWASP ZAP, or similar; methodical breach forensics in logs (Wireshark, Splunk, ELK—whatever you are most fluent with); and concise reporting that spells out risk, impact, and a clear remediation path. When spam-caller data comes in, I’ll pass raw call logs or recordings to you so you can pivot across open-source datasets, map infrastructure, and attribute where possible. Please focus your proposal on your direct experience performing web app pentests and breach investigations. If you have case studies that show how you combined OSINT with technical testing, that will help me choose quickly. Deliverables I expect: • A formal penetration-test report with proof-of-concept exploits, risk ratings, and remediation steps • A brief incident analysis for each breach or spam-caller event, including supporting evidence • A follow-up session (remote) to walk through findings, answer questions, and verify fixes I’m aiming to move fast once I find the right fit, so let me know how soon you can start and roughly how long you’ll need for the first round of testing.
Project ID: 40400625
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36 freelancers are bidding on average $216 CAD for this job

Hello, This aligns closely with my experience in web application penetration testing and breach investigation. I’m Md Shofiur, a Certified Ethical Hacker with 10+ years of experience identifying real-world exploitable vulnerabilities and supporting remediation. Relevant Experience: SaaS Pentest: Identified IDOR, auth bypass, and stored XSS across API + frontend. Provided PoCs and worked with devs to patch and retest successfully. Breach Investigation: Analyzed logs (ELK/Splunk) to trace unauthorized access via token/session abuse and misconfigured endpoints. OSINT + Social Engineering: Built profiles from phone numbers/usernames, mapped infrastructure, and linked activity across platforms to support attribution. Approach: Manual-first testing using Burp Suite + custom payloads Deep testing of auth, input validation, session handling, and business logic Log forensics and traffic analysis (Wireshark, ELK, Splunk) OSINT pivoting from minimal data (phone, email, username) Deliverables: Full pentest report (PoC, risk ratings, remediation) Incident analysis per breach/spam event with evidence Live walkthrough + retest support Timeline: Initial pentest: 5–7 days Ongoing investigations: as needed I’m available to start immediately. Best regards, Md Shofiur
$1,500 CAD in 7 days
7.4
7.4

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…
$30 CAD in 7 days
4.8
4.8

As a seasoned Full Stack Developer with over 12 years of experience, I have acquired an extensive skill set that is uniquely suited to your project's requirements. My hands-on experience spans from front-end to back-end development, empowering me to understand and identify vulnerabilities at every level of your web application. I am proficient in tools like Burp Suite and OWASP ZAP, and my keen eye for detail ensures that no vulnerability goes unnoticed. In addition, my familiarity with various databases like MySQL and MongoDB enables me to carry out methodical breach forensics proficiently. For instance, I can fluently work with Wireshark, Splunk or ELK according to the needs of each investigation as you find appropriate. Besides this technical expertise, I have a solid foundation in data analysis - a skill crucial for identifying patterns and linking spam-call incidents - which enhances my efficiency in attributing such threats. The evolving nature of cybersecurity demands quick adaptability and collaborative approach. In that regard, my competency extends not only to API integrations and backend development but also to AI and Automation deployment further. Moreover, I am well-versed in cloud technologies
$20 CAD in 3 days
3.4
3.4

Having worked as a Senior Full-Stack Developer for over a decade, my experience and skill set align perfectly with the requirements of your project. While building scalable web applications and platform systems, ensuring robust security measures is always one of my top priorities. I am well-versed in using tools like Burp Suite and OWASP ZAP that you specified for conducting web application penetration tests effectively. What sets me apart from others is my penchant for thoroughness; no stone goes unturned under my watchful eye. With every vulnerability discovered, not only will I trace and document it meticulously, but I'll also provide you with proof-of-concept exploits alongside a comprehensive report that rates each risk and offers clear remediation steps. Moreover, as someone fascinated by the interplay between technology and security, I've gone past just app pentests to develop an extensive Open-Source Intelligence (OSINT) technique. This is especially relevant to your project since it involves investigating spam-caller incidents. Trust me to employ this unique skill to pivot across various open-source datasets, map infrastructure and attribute where possible.
$20 CAD in 2 days
1.0
1.0

Running thorough web application penetration tests requires a meticulous approach to vulnerability identification and reporting. Utilizing tools like Burp Suite and OWASP ZAP, I will conduct hands-on tests to uncover potential risks. My experience includes performing detailed breach investigations supported by OSINT techniques, allowing for accurate attribution of threats linked to spam-caller incidents. With precise documentation and actionable remediation strategies, I can deliver a formal penetration test report within 14 days. Happy to share a few early ideas, want me to put something together?
$17 CAD in 14 days
0.0
0.0

Building secure web applications has always been at the forefront of my mission. I approach each project with meticulous care, ensuring every line of code is resilient against potential cyber threats. Considering your need for a seasoned web app security partner, my 3+ years of Full-Stack Development experience, particularly in the areas of API integration and database management, makes me an ideal fit for this role. My extensive proficiency with tools like Burp Suite, OWASP ZAP, as well as deep comprehension in Wireshark, Splunk, ELK and similar platforms would be advantageous. Pitch (cont'd): I’ve already provided multiple successful penetration testing engagements for different clients where I sharpened my understanding of diverse potential security threats to web applications. One of the core features of my work is maintaining concise yet comprehensive reporting that detail risks identified alongside a clear roadmap for remediation measures. Additionally, using my skills on data analysis and technical documentation; I'll be able to document every vulnerability from the tests alongside a proof-of-concept exploits complementing your expectation for formal reports. Another unique skill that sets me apart from my peers is my proficiency in Open Source Intelligence (OSINT) which will be invaluable to tracking down vulnerabilities linked to spam-callers or unidentified threat actors.
$20 CAD in 3 days
0.0
0.0

Boss, this is exactly the kind of work I specialize in—deep web app pentesting combined with real-world breach investigation and OSINT correlation. I’ve run full-cycle tests using Burp Suite (manual + automation), uncovered critical issues like IDOR, auth bypass, and business logic flaws, and delivered clean reports with reproducible PoCs and patch guidance. On the investigation side, I’ve worked with log stacks (ELK/Splunk) and packet analysis to trace intrusion paths, then pivoted into OSINT (phone numbers, usernames, infrastructure mapping) to connect actors across datasets. I don’t just report vulnerabilities—I help you reproduce, understand, and fully fix them. For your scope, I’d approach it like this: Structured pentest → prioritized vuln report with PoCs + fixes Incident/breach analysis → clear timeline + evidence-backed conclusions OSINT on spam-caller cases → attribution attempts + infra mapping Price: $450 for the first full round Timeline: 4–6 days to deliver complete pentest report + initial findings I can start immediately. Quick question: do you already have a staging environment for safe exploitation testing, or should I plan around production-safe methods only?
$20 CAD in 5 days
0.0
0.0

I can help with thorough web application testing and clear documentation of findings. My focus is on manual testing and identifying common but impactful issues like XSS, SQL Injection, and access control problems. I work with tools like Burp Suite and follow a structured approach—testing endpoints, reproducing issues, and documenting them with clear steps, impact, and suggested fixes. For this project, I can: • Run systematic testing on the application • Reproduce and validate vulnerabilities • Deliver concise reports with proof-of-concept and remediation notes For the OSINT/incident side, I’m comfortable supporting the analysis and documentation, and can work alongside your process to map findings where possible. If it works for you, we can start with a short initial scope to validate coverage and reporting style before moving into the full engagement. I’m available to start right away—happy to discuss your setup and priorities.
$25 CAD in 7 days
0.0
0.0

This project aligns well with my experience in web application pentesting and security investigations. I’m Akash Gupta, a Certified Ethical Hacker with 3+ years of experience identifying real, exploitable vulnerabilities and supporting remediation. Experience: SaaS Pentest: Found IDOR, auth bypass, and stored XSS in APIs and frontend; delivered PoCs and verified fixes Breach Investigation: Used ELK/Splunk to trace unauthorized access via token/session abuse and misconfigurations OSINT: Pivoted from phone numbers/usernames to map infrastructure and link activity across platforms Approach: Manual-first testing (Burp Suite + custom payloads) Deep testing of auth, input validation, sessions, and logic flaws Log forensics (Wireshark, ELK, Splunk) OSINT from minimal data (phone, email, username) Deliverables: Pentest report (PoCs, risk ratings, fixes) Incident analysis with evidence Live walkthrough + retest support Timeline: 5–7 days initial testing | ongoing support as needed Available to start immediately.
$1,420 CAD in 7 days
0.0
0.0

Hi there, I can provide the high-level Penetration Testing and Digital Forensics expertise required to secure your web applications and investigate ongoing threats. I specialize in the "pivot" between technical vulnerability research and OSINT-driven attribution, making me well-suited to handle both your app security and your persistent spam-caller investigations. My Core Services: Web App Pentesting: Methodical testing using Burp Suite Professional and OWASP ZAP to identify SQLi, XSS, and broken authentication. I provide clear PoC exploits and remediation steps for every finding. Breach Forensics: I am fluent in Splunk and Wireshark for log analysis, allowing me to trace attacker footprints, identify entry points, and document data exfiltration. OSINT & Attribution: I use advanced OSINT techniques to map infrastructure from phone numbers or usernames, cross-referencing leaked datasets and infrastructure logs to identify the threat actors behind your spam incidents. Deliverables: Formal Pentest Report: Detailed risk ratings (CVSS) and verified remediation paths. Incident Analysis: Evidence-based reports for breaches and spam-caller events. Verification Sessions: Remote walkthroughs to confirm patches are effective. Best regards, Pallvi Gupta
$30 CAD in 2 days
0.0
0.0

I am an OSCP-certified penetration tester with commercial experience delivering web application security assessments for clients across Europe and internationally. I specialize in hands-on penetration testing using tools such as Burp Suite, focusing on identifying, validating, and exploiting vulnerabilities in a controlled and reproducible way. I also develop custom tooling and scripts to support and speed up testing workflows during engagements. I have experience in cloud and infrastructure security testing, along with producing clear, actionable reports that include proof-of-concept exploits, risk ratings, and remediation guidance. In addition, I have experience in OSINT investigation, including tracing activity from minimal data such as usernames, IPs, or phone numbers. I am comfortable working with log analysis and network forensics tools such as Wireshark and ELK to support incident investigations, and I am available to start on very short notice and align quickly on scope and timelines for the first assessment.
$1,500 CAD in 14 days
0.0
0.0

Hello, My name is Devang Jivani, and I have 2+ years of hands-on experience in Web and Network Penetration Testing, focusing on identifying real-world vulnerabilities and analyzing security incidents. I can perform thorough web application testing using tools like Burp Suite and OWASP ZAP, covering OWASP Top 10 issues along with deeper manual analysis. I focus on validating vulnerabilities with clear proof-of-concept and providing practical remediation steps. I also have experience analyzing logs and investigating security incidents using tools like Wireshark and ELK, helping identify attack patterns and root causes. Additionally, I’m familiar with OSINT techniques to trace indicators such as phone numbers or usernames and correlate findings across open sources. You will receive a detailed report with risk ratings, PoC, and clear fixes, along with concise incident analysis and support during verification. I focus on accuracy, clarity, and actionable results. Looking forward to working with you. Best regards, Devang Jivani
$1,500 CAD in 7 days
0.0
0.0

I'm a fresher in this field so I must be a perfect fit to help you to complete this task. I have been currently using these tools and have strong interest.
$20 CAD in 7 days
0.0
0.0

Hi, This aligns perfectly with my expertise. I don’t just run automated scans — I perform deep, manual testing, reproduce vulnerabilities, and help ensure they are fully patched. I have hands-on experience in web application penetration testing using Burp Suite (Professional), along with strong knowledge of OWASP Top 10 and real-world attack techniques. Here’s how I can support your project: Web Application Pentesting * Manual vulnerability discovery and exploitation (IDOR, XSS, SSRF, auth flaws, etc.) * Proof-of-concept validation to demonstrate real impact Breach & Log Analysis * Analyze logs and traffic to trace attacker behavior * Reconstruct incidents step-by-step for clear understanding OSINT & Attribution * Pivot from phone numbers or usernames * Correlate open-source data to identify patterns and infrastructure ? Clear Reporting & Remediation * Professional report with risk ratings and business impact * Step-by-step remediation guidance for each issue Deliverables: * Full penetration testing report with PoCs * Incident analysis for each case * Actionable remediation plan * Optional walkthrough session to explain findings I can start immediately and provide initial findings within 24–48 hours. If you can share a target scope or sample logs, I’m ready to begin right away. Best regards,
$20 CAD in 7 days
0.0
0.0

Hi, I can start immediately and deliver a focused initial security assessment of your web application. For this budget, I propose Phase 1: • Targeted penetration testing of key endpoints (authentication, input fields, core flows) • Manual testing using Burp Suite and OWASP methodology • Identification and validation of critical vulnerabilities (XSS, SQLi, IDOR, file upload issues, etc.) • Clear report including: * step-by-step reproduction * risk explanation * actionable remediation guidance You will receive a structured penetration test report with verified findings and proof-of-concept details. After this phase, we can expand into: • deeper testing coverage • incident/breach analysis • OSINT investigation Timeline: • Initial report: 2–3 days depending on scope Before starting, I’ll need: • defined scope (domain/endpoints) • written authorization for testing This approach ensures fast results and clear, actionable insights before moving into more advanced analysis. Thanks.
$30 CAD in 7 days
0.0
0.0

With my extensive experience as a full-stack web developer spanning over 12 years, I am well-positioned to conduct thorough web application penetration tests and conduct sensitive breach investigations for your platform. Apart from my proficiency in using tools like Burp Suite, OWASP ZAP, Wireshark and Splunk, I have a profound understanding of risk assessment in simulations and in real-time situations owing to my exposure to diverse technologies such as MERN stack-based, Ruby On Rails and ASP.NET. One of the key strengths I bring to the table is my ability to amalgamate Open Source Intelligence (OSINT) with efficient technical testing. As evidenced in my GitHub profile, I have not only contributed towards open-source projects but also employed OSINT proficiently for comprehensive data analysis. My robust problem-solving skills combined with a deep-seated understanding of statistics are intrinsic to finding and eliminating vulnerabilities promptly. Lastly, being a passionate agile developer, my goal remains unchanged – to fulfill client requirements meticulously in a time-sensitive manner. I guarantee you detailed yet concise reporting that aligns risk ratings with mitigative steps along with incident analysis inclusive of supporting evidence for each security breach or anomalous spam-caller activity.
$20 CAD in 7 days
0.0
0.0

I am expert penetration tester, i focus mainly on business logic kind of vulnerabilities and the critical ones.
$20 CAD in 7 days
0.0
0.0

As a Senior Offensive Security Engineer with 5+ years of experience protecting organizations across 10+ countries, I'm well-positioned to deliver on your project. I recently led a post-breach investigation on one of the largest crypto thefts in history (~$140M) — tracing the root cause to weak access controls and absent monitoring, and rebuilding the full attack chain. Clients consistently describe my reports as "well-written and actionable." For your web app pentest, I cover OWASP Top 10, business-logic flaws, auth bypasses, IDOR, and chained exploitation — plus modern AI-era risks: prompt injection, RAG/vector-DB attacks, MCP abuse, and AI supply-chain threats. Work is aligned to MITRE ATT&CK, OWASP, NIST CSF, SOC 2, ISO 27001, NIST AI RMF, and OWASP LLM Top 10. Deliverables: executive summary, prioritized risk-rated findings with evidence, remediation guidance, and an optional re-test to validate fixes. Available immediately with quick turnaround and clear communication throughout. Let's make your system resilient against both traditional and AI-era threats.
$20 CAD in 7 days
0.0
0.0

Hi, your project matches my profile closely. I'm a cybersecurity consultant with 18+ years in web app pentesting, breach forensics, and OSINT investigations. Pentesting: Burp Suite Pro + OWASP ZAP, following OWASP Testing Guide and PTES. Deliverable is always a formal report with PoC exploits, CVSS ratings, and remediation steps. Forensics: Log analysis with Wireshark, Splunk, and ELK. I've led breach investigations for SFC-regulated institutions and built the CSIRT for Grupo AVAL. OSINT: Maltego and custom pivoting from phone numbers or usernames to map infrastructure and attribute threat actors — including electoral cybersecurity projects where initial data was minimal. I cover all three deliverables you listed: pentest report, per-incident briefs, and remote walkthrough session. Available to start within 48 hours. First round: 5–7 business days depending on scope. Certifications: CEH | CHFI | Lead Auditor ISO 27001:2022 | PMP
$30 CAD in 7 days
0.0
0.0

I am ready to step in as your security partner. My background in computer engineering, specializing in network and system security, has equipped me with a methodical approach to uncovering vulnerabilities and neutralizing threats. I provide not just a list of bugs, but a strategic path to hardening your infrastructure. Web Application Penetration Testing I perform deep-dive assessments that go beyond automated scanning. My methodology focuses on logic flaws, broken access controls, and injection vulnerabilities. Breach Forensics & Investigation In the event of a security breach, I pivot into an investigative mindset. I am experienced in parsing complex logs to reconstruct attack chains, identifying the initial point of entry, and determining the scope of data exposure. Deliverables & Timeline I am committed to providing high-impact deliverables that prioritize clarity and action: Comprehensive Pentest Reports: Detailed risk ratings and step-by-step remediation guides. Incident Analyses: Evidence-backed breakdowns of breaches and spam-tracking events. Collaborative Follow-ups: Interactive sessions to verify fixes and ensure your team is confident in the new security posture. Availability: I can begin an initial assessment within 48 hours. For a standard web application, I typically require 5 to 7 business days for the first round of comprehensive testing and documentation.
$15 CAD in 7 days
0.0
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