Contrast Security One Ast __link__ -

| Aspect | Contrast AST (Legacy) | Contrast Security One | |--------|----------------------|------------------------| | | Self-managed (on-prem) or single-tenant cloud | Fully managed SaaS (multi-tenant) | | Core Technology | IAST + SAST + SCA (separate sensors) | Unified agent (IAST + RASP + SCA + API Security) | | Analytics | Basic correlation | AI-driven analytics + automated attack validation | | Policy & Remediation | Manual rules, fixed policies | Dynamic risk scoring, prioritized fix guidance | | Scalability | Limited by self-hosted infrastructure | Auto-scaling, zero-ops |

When a developer builds an application using an agent provided by Contrast (available for Java, .NET, Node.js, Python, Go, etc.), the agent attaches to the application runtime. It places sensors at critical points—database calls, file system interactions, HTTP requests, and memory allocations.

Automatically identifies known vulnerabilities in third-party libraries and open-source dependencies, ensuring the entire "software supply chain" is secure. contrast security one ast

The same agent used for testing can be left on in production mode. In this state, it doesn't just report bugs; it blocks attacks.

OneAST aggregates data from multiple sources into a single dashboard: | Aspect | Contrast AST (Legacy) | Contrast

A common complaint in AppSec is the tradeoff between testing depth and delivery speed. OneAST attempts to solve this by shifting testing left without slowing down the pipeline.

By utilizing instrumentation, it solves the two biggest headaches in AppSec: false positives and context switching. For organizations struggling to secure modern, complex architectures (microservices, cloud-native apps) without slowing down their release cadence, OneAST offers a solution that speaks the language of developers while providing the assurance security teams require. The same agent used for testing can be

is a unified application security testing platform designed to simplify how developers and security teams identify, prioritize, and remediate vulnerabilities across the entire software development life cycle (SDLC) .

aims to end this cycle. It represents a paradigm shift from scanning code to observing code.

| Scenario | Recommended | |----------|--------------| | Strict data residency (air-gapped, gov, financial) | Contrast AST (on-prem) | | DevSecOps team wanting minimal ops overhead | Contrast Security One | | Need automated exploit validation (confirm vulns are real) | Contrast Security One | | RASP + IAST in production with active blocking | Contrast Security One | | Existing legacy deployment with deep customization | Contrast AST |

Analyzes third-party libraries and frameworks for known vulnerabilities (CVEs) and ensures only secure open-source components are used.