Website Security

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... (Budget: min $50 USD, Jobs: Compliance, Data Governance, Data Protection, Fraud Detection, Incident Response, Internet Security, Risk Management, Security, Security Auditing, Web Security)

Our production web application needs a comprehensive gray-box penetration test that evaluates its overall security posture. Source-code access and limited internal documentation will be provided, yet I still expect the perspective of an external attacker... (Budget: $3000 - $5000 USD, Jobs: Computer Security, Linux, MySQL, Network Security, Penetration Testing, Risk Assessment, Security Auditing, Web Security)

I have already integrated Paystack on my site and confirmed that both the callback URL and webhook endpoints are reachable. Payments go through and Paystack marks them as “successful,” yet the buyer’s balance never updates on my platform and no error is returned... (Budget: $10 - $30 USD, Jobs: API Integration, Debugging, MySQL, Payment Processing, PHP, Software Architecture, Web Development, Web Security)

PROJECT: Institutional corporate website for NEVIE-GLOBAL SAS (investment holding company) — 10 pages, dynamic CMS, connected lead-generation forms, 21 documented automation/infrastructure workflows. ... (Budget: €30 - €150 EUR, Jobs: Automation, CMS, HTML, JavaScript, Node.js, PHP, Web Design, Web Development, Web Security, WordPress)

Both my smartphone and my laptop are showing clear signs of unauthorized access and I need them checked at the same time, not one after the other. I’m looking for a seasoned cybersecurity professional... (Budget: ₹12500 - ₹37500 INR, Jobs: Computer Security, Digital Forensics, Incident Response, Internet Security, Linux, Network Security, Security Auditing, Web Security)

My Meta Business Portfolio was hijacked: the attacker stripped me of administrator rights inside Business Manager and is actively running ads from my ad accounts. I first realized something was wrong when my own access vanished... (Budget: $30 - $250 USD, Jobs: Customer Support, Digital Marketing, Incident Response, MySQL, PHP, Social Media Management, Web Security, WordPress)

Our NGO’s site is built on WordPress and I’d like to place its technical health in steady hands under a monthly retainer arrangement. The core needs are straightforward yet critical: squash any bugs that... (Budget: ₹600 - ₹1500 INR, Jobs: cPanel, HTML, PHP, Technical Support, Web Security, Website Development, Website Management, WordPress)

Advanced Web Application Penetration Testing I’m looking for a highly experienced professional penetration tester to perform an in-depth security assessment of the provided website/application. This is not a request for a basic vulnerability scan or a simple “the website is secure” assessment... (Budget: £500 - £1000 GBP, Jobs: Internet Security, Penetration Testing, Risk Assessment, Security Auditing, Testing / QA, Web Security, Website Testing)

I’m launching a private-facing gambling website where I will act not only as the administrator but also as the live dealer. The core of the build is a fully hosted, fully licensed casino platform that lets me switch games on and off, manage player wallets, and monitor play in real time... (Budget: $10 - $30 USD, Jobs: API Integration, Compliance, Linux, PHP, Security, Web Development, Web Hosting, Web Security)

I need a skilled developer to create a chatbot using React for deployment in a private banking environment. The chatbot's primary function will be to handle transactional services, including account balance inquiries, money transfers, and bill payments... (Budget: $1500 - $3000 USD, Jobs: API Development, Chatbot Development, Frontend Development, JavaScript, Software Development, User Interface / IA, Web Development, Web Security)

I run an e-commerce website on PrestaShop 1.6.1 and need Google Pay added to the existing checkout flow on the web storefront. The job includes installing or developing a compatible payment module, configuring... (Budget: €30 - €250 EUR, Jobs: API Integration, eCommerce, HTML, Payment Gateway Integration, PHP, Prestashop, Web Development, Web Security)