Data Theorem AppSec vs Legit VibeGuard: Side-by-Side Comparison (2026)

Data Theorem AppSec

Mid-market and enterprise teams building mobile-first or API-heavy applications should start here; Data Theorem AppSec discovers and tests assets across mobile, web, API, and cloud in a single platform where competitors force you to stitch tools together. The vendor covers asset management through runtime protection across NIST ID.AM, PR.DS, PR.PS, and DE.CM, which means you get continuous inventory tied directly to active threat blocking rather than visibility that sits disconnected from response. This isn't the tool for teams whose primary concern is supply chain risk management or those deeply invested in legacy monolithic web applications where traditional DAST-only platforms suffice.

Legit VibeGuard

SMBs and mid-market teams shipping AI-assisted code need VibeGuard specifically because it detects vulnerabilities in LLM-generated code that traditional SAST misses, catching both the code artifact and the model's supply chain risk. The platform covers NIST GV.SC and ID.AM through native AI-BOM generation and SDLC discovery, meaning you're securing the model inputs, not just the code outputs. Skip this if your developers aren't using Claude, Cursor, or similar coding assistants at scale; the AI-native focus means less value for teams still writing code manually or working in completely legacy stacks.