Introduction
When building a product, teams often face a critical decision:
Should we build our own authentication system?
At first glance, it seems simple.
In reality, it’s one of the most underestimated engineering challenges.
The “Build” Approach
Many teams start with:
- Login page
- Password reset
- Basic roles
But quickly face:
- MFA requirements
- OAuth / SAML integration
- Security vulnerabilities
- Compliance needs
The Hidden Cost of Building IAM
Time Cost
- Initial build: 2–6 months
- Continuous updates: forever
Engineering Cost
- Dedicated backend team
- Security expertise required
Risk Cost
- Data breaches
- Compliance violations
The “Buy” Approach
Using an IAM platform means:
- Ready-to-use authentication
- Built-in MFA & SSO
- Compliance support
Build vs Buy Comparison
When Should You Build?
Only if:
- IAM is your core product
- You have a dedicated security team
When Should You Buy?
In almost every other case
Especially if:
- You are a SaaS company
- You want fast time-to-market
Modern Trend
Most modern companies are moving to:
SECaaS (Security-as-a-Service)
Conclusion
Building IAM is not just building features.
It’s committing to:
- Security
- Compliance
- Maintenance
For most companies:
Buying is the smarter decision.
See how PlusAuth simplifies IAM
Request a demo today
