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Datawall is not yet available. It will require an Enterprise plan. This page describes planned functionality.
Datawall is a Veto control for detecting confidential data leaving an Ona environment over the network. It runs below the agent, at the kernel level, so the process attempting the transfer cannot disable or inspect the mechanism that is evaluating it.

When to use Datawall

Use Datawall when you want stronger protections around code, credentials, tickets, prompts, or other sensitive material that enters an environment and should not leave it unchecked. Typical use cases:
  • environments handling confidential repositories or internal documentation
  • agents reading tickets, MCP responses, or secrets that should not be copied out
  • teams that need an explicit exfiltration control in addition to identity, policy, and audit logs

How Datawall works

When confidential data enters the environment, Ona registers that material for monitoring. The kernel fingerprints it and compares outbound network traffic against those fingerprints. This is designed to catch transfers across common network paths, including:
  • HTTP and HTTPS
  • SSH-based traffic such as git push and scp
  • traffic relayed through helper processes
  • common encoding transforms such as base64, hex, and URL encoding

What Datawall detects well

ScenarioDetected
Agent sends data verbatim over HTTP or HTTPSYes
Agent encodes data before sendingYes
Agent relays data through a child processYes
Agent writes data to disk and another process sends itYes
Agent sends data over SSHYes
Agent encrypts data at the application layer before sendingYes
Agent splits data across multiple requestsPartial
Agent paraphrases or rewrites the dataNo

Operating and investigating

Every detection produces a structured event that is written to environment logs and reported to the management plane. Review the event to understand:
  • which action triggered the match
  • where the traffic was going
  • which process attempted the transfer
  • when the detection occurred