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I need a credit card security expert to identify and stop a breach. Someone is regularly penetrating my credit account and making fraudulent charges. This has happened with two different banks and credit cards. I've already changed banks and credit cards and reported the fraud. Ideal skills and experience: - Experience with fraud detection and prevention - Knowledge of security protocols for credit accounts - Ability to investigate and identify sources of breaches - Strong communication skills to explain findings and recommend solutions Please provide a detailed plan of action and any relevant certifications or experience.
Project ID: 40658184
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Active 3 hours ago
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10 freelancers are bidding on average $51 USD/hour for this job

You’ve already switched banks/cards and reported the fraud, good. The next step is to treat this like an account-compromise investigation, then harden the flow end-to-end. Plan of action: 1) Scope & timeline: map dates, affected institutions, charge patterns, login events, and any recurring identifiers. 2) Evidence review: analyze bank/card dispute logs, merchant data where possible, any alerts, and device/account access history. 3) Root-cause hypotheses: assess whether the cause is credential compromise, session/token theft, SIM/phone-number takeover, phishing/malware, unauthorized household access, or compromised payment-side integrations. 4) Breach-source identification: trace how attackers could repeatedly reach two different banks, e.g., shared email password reuse, unsafe browser extensions, compromised password manager, weak recovery paths. 5) Containment & prevention: lock down account recovery, enable stronger MFA (prefer authenticator app/hardware key), review trusted devices/sessions, and apply risk controls. 6) Ongoing monitoring playbook: set up alerts, freeze/monitor credit where appropriate, and document indicators so you can respond fast. Certifications/experience to reference (if you have them): CompTIA Security+, CEH, CISSP, CISM, or equivalent hands-on incident response and fraud investigation work. I can deliver a clear incident summary plus practical hardening recommendations tailored to your specific workflow.
$50 USD in 17 days
5.2
5.2

With my extensive experience in the field of cybersecurity and my specific proficiency in internet security, security auditing, and web security, I am confident that I can help bring an end to these fraudulent charges. As the Founder of A2Z Research Consultants, a practice devoted to advising organizations on their cybersecurity posture, we aim for real results rather than just paper audits. In fact, in my recent $20,000 engagement with a multinational firm, I conducted a thorough evaluation on leading security platforms, illustrating my ability to assess and compare potential breach sources. Certified by Freelancer.com as part of their top 1% elite freelancers and with over 680+ five-star projects successfully delivered since 2011, my team and I at A2Z Research Consultants will provide you with comprehensive solutions tailored to your specific needs. My knowledgebase encompasses vulnerability assessments, penetration testing, and SIEM; attributes crucial to investigating your credit card breaches. Choose me as your trusted long-term advisor for this project and together we'll find the source of your credit card breaches while providing immediate solutions to ensure it never happens again.
$50 USD in 10 days
1.5
1.5

As a data analyst with a strong focus on security, I firmly believe I can help you solve this troubling and recurring issue. My experience in data protection, combined with my familiarity with credit card security protocols, makes me a precise fit for your project. Throughout my career, I've been entrusted with preserving and analyzing sensitive information, implementing measures to prevent unauthorized access. Given that your problem involves identifying and halting breaches, my skill set aligns perfectly. In addition to this, my proficiency lies in utilizing various tools including web scraping and mining - both skills pertinent to identifying sources of breaches. Furthermore, I am adept at consolidating and analyzing large sets of data which will be critical in revealing patterns indicative of fraudulent activities. Beyond the technical abilities, my strong communication skills enable me to not just inform but also explain complex findings, as well as recommend effective solutions. This means that throughout our collaboration, I will consistently keep you informed about progress made in securing your credit accounts. I look forward to leveraging my expertise in protecting data to ensure the safety of your accounts moving forward.
$50 USD in 40 days
0.0
0.0

I have experience with cybersecurity, fraud prevention, account security, authentication, access-control reviews, and investigating suspicious activity. I can help identify likely attack vectors, review your account and device security, and recommend practical steps to prevent further unauthorized transactions. I can provide a structured investigation covering account access, authentication, devices, email security, payment details, and potential credential exposure, while documenting findings and recommended remediation steps. Could you share whether the fraudulent charges are occurring through online purchases, recurring payments, or another type of transaction, and whether you’ve noticed any suspicious login or account activity?
$50 USD in 40 days
0.0
0.0

Washington, United States
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Member since Aug 19, 2026
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