Nexus Platform · Explore

Vanguard™

Autonomous Defense & Response

Knowing about a threat is not enough. Vanguard acts on it — at machine speed, across every surface of your enterprise, within governance boundaries your team defines. It determines the right action, executes it, and validates it worked. All within seconds.

<60s
Containment time
6+
Surface types covered
100%
Actions auditable

Vanguard™ Response Surfaces

  • Identity & Credential Systems
  • Endpoint & Device Isolation
  • SaaS Application Containment
  • Cloud Workload Response
  • Network Traffic Control
  • AI Agent Suspension
How Vanguard Works

Decide. Act. Validate. Repeat.

Vanguard runs a continuous autonomous response loop — always evaluating threat context, always ready to act, always validating that actions achieved their intended outcome.

01

Threat Context Intake from Overwatch AI

Vanguard receives fully investigated, contextual threat intelligence from Overwatch AI — not raw alerts. It knows what happened, which systems are affected, what the attacker’s likely next move is, and what Atlas says about the blast radius of the current exposure.

02

Autonomous Decision Engine Evaluation

Vanguard’s decision engine evaluates the optimal response based on threat severity, business criticality of affected assets, current trust levels, active policy rules, and attack progression stage — selecting the least disruptive containment action that effectively neutralizes the threat.

03

Governance Policy Check

Before acting, Vanguard checks every action against your enterprise governance model. Some actions execute autonomously. Others route to an analyst for approval. High-impact actions require executive sign-off. Emergency override controls are always available. Every path is pre-defined by your team — not us.

04

Multi-Surface Action Execution

Vanguard executes containment actions across identity systems (session termination, credential revocation), endpoints (isolation, process kill), SaaS platforms (account suspension, OAuth revocation), cloud environments (workload quarantine, IAM restriction), and AI agents (suspension, tool access restriction) — simultaneously and at machine speed.

05

Closed-Loop Validation

Vanguard doesn’t just act and move on. It continuously verifies that containment succeeded — checking that attacker access is gone, that risk has been removed, and that trust has been re-established. If residual risk remains, it automatically escalates or takes additional action.

Deep Capabilities

What Vanguard Can Do

Autonomous Decision Engine

Continuously evaluates threat context, business criticality, trust levels, and policy constraints to select the optimal defensive action — without requiring human judgment for every decision.

Human-Governed Autonomy

Configurable governance tiers let your team decide exactly which actions are autonomous, which require analyst approval, and which require executive sign-off — with full separation of duties support.

Sub-60s Containment

From threat confirmation to containment action in under 60 seconds — across endpoint isolation, session termination, credential revocation, and agent suspension simultaneously.

Privilege Risk Reduction

Automatically removes excessive permissions, revokes privileged access, enforces step-up authentication, and restricts lateral movement during active incidents — reducing attack surface in real time.

Trust-Based Enforcement

Every response decision incorporates current trust signals from TrustAnchor — identity trust, device trust, session trust, application trust, and agent trust scores — ensuring responses are proportionate and contextual.

Closed-Loop Validation

Continuously verifies containment success, checks for residual risk, confirms attacker access removal, and provides evidence that trust has been re-established before clearing an incident.

Use Cases

How Enterprises Use Vanguard

Financial Services

Credential Compromise Response in 47 Seconds

When Overwatch AI detected a credential stuffing attack targeting high-privilege accounts, Vanguard automatically terminated 340 active sessions, revoked OAuth tokens for 12 connected SaaS applications, and enforced MFA re-enrollment — all within 47 seconds of threat confirmation.

Outcome: Zero accounts fully compromised. $0 fraud loss. Complete audit trail produced automatically.
Critical Infrastructure

Ransomware Lateral Movement Containment

Vanguard detected and contained ransomware lateral movement across 14 endpoints before encryption began — automatically isolating affected systems, revoking the compromised service account, and preventing spread to adjacent network segments while keeping critical OT systems operational.

Outcome: Ransomware contained to 14 endpoints. Zero operational disruption to critical systems.
Healthcare

Insider Data Exfiltration Prevention

When Overwatch AI identified an insider threat exfiltration attempt, Vanguard routed the response through the executive approval workflow (per policy for HR-related incidents), received approval in 3 minutes, and immediately suspended the account and revoked all active sessions across 8 SaaS platforms.

Outcome: Exfiltration attempt blocked. Human approval maintained for sensitive HR action. Full evidence package preserved.
Global SaaS

AI Agent Compromise Containment

When AgentShield detected a prompt injection attack successfully manipulating an internal AI agent, Vanguard automatically suspended the agent, revoked its API credentials, blocked its workflow execution, and isolated its MCP server connections — all before the manipulated action could execute.

Outcome: Malicious action blocked pre-execution. Agent suspended and investigated. MCP server access revoked.
Part of Nexus

Vanguard Acts on What the Platform Knows

Vanguard uses Atlas for context, Overwatch AI for investigation results, TrustAnchor for trust signals, and AgentShield for AI agent containment — making every response smarter than any standalone tool.

Contain Threats in Seconds. Not Hours.

Vanguard executes machine-speed defensive actions across your entire enterprise — within your governance boundaries, with full audit trails.