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I want to harden my telephone and email channels, both of which rely on one-time-password flows aimed at Indian users. To do that, I need a security professional who can act as an ethical hacker and carry out full penetration testing against the current OTP mechanisms. Experience with Indian telecom infrastructures, local SMS routes, and common email providers used in India is essential, because the test environment must mirror what real customers see.
Project ID: 40466285
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8 freelancers are bidding on average ₹3,506 INR for this job

Hello, I am a cybersecurity professional with experience in penetration testing, authentication security assessment, and incident response. I can perform a controlled and authorized security evaluation of your OTP mechanisms across both SMS and email channels, focusing on real-world attack scenarios relevant to Indian users. My testing approach includes: * OTP flow and authentication logic testing * Rate-limiting and brute-force protection assessment * Account enumeration and session security checks * API and token validation testing * SMS/email delivery workflow security review * Security hardening recommendations with detailed reporting I am familiar with Indian telecom/SMS delivery environments and common email ecosystems used by Indian users, allowing realistic testing aligned with actual customer experience. I can maintain strict confidentiality throughout the engagement and provide a professional vulnerability report with remediation guidance. Available to start immediately. regards Kajal Majhi
₹12,000 INR in 7 days
3.8
3.8

I understand that securing your telephone and email channels is critical, especially in the context of OTP flows for Indian users. With 12+ years of experience, I specialize in security assessments and can conduct thorough penetration testing on your current OTP mechanisms to identify vulnerabilities. My expertise spans relevant technologies such as Node.js for backend security, Firebase for authentication processes, and various automation tools like Appium, Playwright, and Selenium for testing scenarios. Understanding the nuances of Indian telecom infrastructures and SMS routes will allow me to simulate real-world conditions effectively. Additionally, I have worked with React.js and Flutter to enhance user interfaces while maintaining security protocols within mobile applications, ensuring a holistic approach to safeguarding user data. To tailor my testing strategy precisely to your needs, could you provide insights into the specific challenges you've encountered with your current OTP implementation? Looking forward to discussing this further!
₹1,500 INR in 7 days
3.4
3.4

( ͡❛ ᴗ ͡❛ ) No Upfront Fee | Free Live Demo Available | 100% Satisfaction Guaranteed | Fast Delivery | Best Price in the Market | 5+ Years of Experience Hi, I can help you **secure and penetration-test your OTP systems** (SMS + Email) with a strong focus on real-world Indian infrastructure scenarios. ### ? Testing Approach I’ll perform **ethical hacking & security assessment** covering: ✔️ OTP bypass attempts (rate limits, reuse, brute force) ✔️ SIM swap & SMS interception risk analysis ✔️ API endpoint testing (token leaks, replay attacks) ✔️ Email OTP vulnerabilities (spoofing, delay exploits) ✔️ Session hijacking & auth flow weaknesses ✔️ Device/IP-based abuse scenarios ### ? India-Specific Focus • Testing across Indian telecom flows (Jio, Airtel, VI behavior patterns) • SMS gateway analysis (delivery delay, duplication, fallback routes) • Common email providers (Gmail, Outlook, Yahoo India) • Real-user simulation environment ### ? Deliverables • Full penetration test report (with severity levels) • Exploit proofs (where applicable) • Step-by-step fixes & hardening recommendations • Secure OTP architecture suggestions (rate limiting, hashing, expiry logic) ### ? Timeline 3–7 days depending on system complexity I focus on **practical, real-world attack scenarios**, not just theoretical checks—so you get actual security improvements. Let’s lock down your OTP system properly ?
₹600 INR in 7 days
0.0
0.0

Hello there, hope you are having a fantastic day so far! Hardening OTP flows on phone and email channels aimed at Indian users, run as a full ethical pentest against the current mechanisms, is a clear, well-shaped engagement. The realistic attack surface on OTP includes SIM-swap risk, SMS interception via SS7 or rogue local routes, replay and brute-force on the OTP itself, phishing reply-channel collection, and OTP-bypass via account-recovery side doors. All of those go into the test plan. How I would run it: - Kickoff and authorization: written scope plus a rules-of-engagement doc covering exactly what is in and out of bounds, especially on the telecom side (no live SS7 abuse without your carrier sign-off). - Black-box and authenticated test passes against the OTP delivery and validation flow: brute, replay, predictable token generation, timing, rate-limit gaps, fallback bypass paths. - Channel-specific checks: SMS route resilience against spoofing, email DKIM and SPF on the sending side, header analysis on inbound, account-recovery flow review. - Findings with reproducible PoCs, CVSS-mapped severity, and concrete remediation tied to your stack. Honest scoping note: deep Indian telecom-route work needs cooperation from your carrier partner. Worth confirming what they can provide before we lock scope. Background: 20 years in IT, 8 in security, 25+ pentest engagements. Vicente Muñoz
₹1,200 INR in 7 days
0.0
0.0

I am Certified Ethical hacker.Having15+ Yeras of Exp. Some Scenerios: OTP brute force, replay attack, SIM swap etc
₹2,500 INR in 7 days
0.0
0.0

Panvel, India
Member since Dec 11, 2019
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