API Security for SaaS Product Development: Protecting Multi-Tenant Platforms and Customer Trust
APIs are now the foundation of SaaS product development, powering authentication, user onboarding, billing, integrations, webhooks, analytics, and internal microservices. As this API footprint grows, the threat landscape has intensified. The Indusface State of Application Security H1 2025 Report recorded a 104% rise in API-targeted attacks, a 13X increase in API vulnerability exploits, and 388% more DDoS attacks on API hosts than on websites.