Case Study: PartnerStack achieves a secure network of trust, blocking 50,000 fraudulent partners and protecting $100K in vendor revenue with Sift

How PartnerStack safeguards its platform and creates a network of trust

PartnerStack is a B2B SaaS partner relationship management platform that helps companies scale affiliate, referral, and reseller programs. When PartnerStack began seeing sophisticated partner-side fraud—self-referral abuse, mass fake sign-ups, and reward gaming—its legacy fraud tools (relying mainly on email and IP signals) couldn’t keep up, threatening vendor relationships and the integrity of its public marketplace.

PartnerStack implemented Sift Payment Protection, Sift Workflows, and a white‑label integration that gives vendors control over their partner networks and automates fraud decisions. The solution blocked 50,000 fraudulent accounts during a major attack, helped secure $100k for a key vendor, and now protects over 500 internal vendors worldwide, creating a stronger, more trusted marketplace.

PartnerStack

Michael Kim

Trust and Platform