This blog post discusses the concerning trend of SaaS vendors placing Single Sign-On (SSO) behind premium pricing tiers. The author, a CTO at a fintech company, argues that SSO has become a fundamental security requirement, driven by regulations like NIS, NIS2, and DORA, and security frameworks such as ISO 27001. Instead of being a standard feature, it's being "weaponized" to push companies into higher, more expensive tiers. The article highlights that while cost-based pricing models often in...