Author profile
Pavlo Maistruk
Software Engineer
Pavlo Maistruk is a software engineer at Design Key who builds fraud-scoring, verification, and mobile integrations. He documented the ZeroBounce email risk scoring, IPQualityScore IP fraud scoring, OpenCorporates company verification, GPT-4o merchant category classification, and Branch mobile deep linking case studies.
Research
Research by Pavlo
Financial Services
AI Merchant Category Code with GPT-4o
How a fintech platform reads a user's own website with GPT-4o to propose a Merchant Category Code at onboarding, kept as a suggestion a human still owns.
ReadFinancial Services
Company Verification with OpenCorporates
How a fintech platform verifies a user's company name against OpenCorporates at onboarding, making a registry match the biggest input in its automated trust score.
ReadFinancial Services
Email Risk Scoring with ZeroBounce
How a fintech platform scores every user email 0-10 with ZeroBounce at onboarding, turning a throwaway address into an early fraud signal in its automated trust score.
ReadFinancial Services
IP Fraud Scoring with IPQualityScore
How a payments platform scores every user's signup IP with IPQualityScore, turning VPN, Tor, and bot signals into an anti-fraud gate within its automated trust score.
ReadMobile Apps
Mobile Deep Linking with Branch
How Branch deep linking routes a mobile user to the right screen, even across an app install, and the universal-link and privacy gotchas that decide whether it works.
ReadContact Us
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