Case Study: Smallpdf achieves strong account protection and improved availability with Imperva Account Takeover Protection

Smallpdf protects its customers and ensures availability using Imperva Account Takeover Protection

Smallpdf, a Zurich-based company founded in 2013, offers over 20 online PDF tools to more than a billion users across 195 countries. As its user base grew, the security team faced frequent large-scale credential-stuffing and brute-force bot attacks that threatened account takeover, user data, and website availability.

Smallpdf deployed Imperva Account Takeover Protection for real-time, risk-based login defense, configurable rules, clear dashboards, and API integrations to automate responses. The result was a marked drop in account takeover attempts, automatic mitigation of attacks (including blocking 8 million malicious login attempts during one incident), reduced time spent on incident response, and stronger automated fraud prevention while maintaining service availability.

Smallpdf

Alexandru Bagi

Senior Security Engineer