Zero Trust vs SASE vs SSE vs Defense-in-Depth
Security Architecture Framework Comparison
Comparison of 4 security architecture frameworks — principles, implementation, cost, complexity, and best fit.
Zero TrustSASESSEDefense-in-Depth
Full Specification Comparison
| Specification | Zero Trust | SASE | SSE | Defense-in-Depth |
|---|---|---|---|---|
| Core Principle | Never trust, always verify | Cloud network + security | Cloud security only | Multiple layers |
| Implementation Cost | High | Very high | Medium | Low |
| Complexity | High | Very high | Medium | Low |
| Cloud-native | Yes | Yes | Yes | No |
| Key Vendors | Zscaler, Okta | Palo Alto, Cato | Netskope, Zscaler | Cisco, Fortinet |
| Best For | All enterprises | Distributed enterprise | Cloud-first orgs | Traditional IT |
| Maturity | Established | Emerging | Emerging | Mature |
Expert Verdict
Zero Trust is the gold standard for identity-centric security; SASE combines networking + security in the cloud; SSE is SASE without the network (cheaper); Defense-in-Depth is the traditional layered approach.
Subject Breakdown
Zero Trust
0 Category Wins
SASE
0 Category Wins
SSE
0 Category Wins
Defense-in-Depth
3 Category Wins
- ★ Implementation Cost: Low
- ★ Complexity: Low
- ★ Maturity: Mature