Service · Managed Investigation & Response

Investigated, then shut down.

Everything in Managed Investigation, and when the verdict is real, the agent contains it. Isolate the host, disable the account, block the indicator.

Runs on its own
AGENT-4471 · automatic response

Malicious DNS query from FIN-WKS-04

13:02:11Verdict true_positive, confidence high
13:02:11block_indicator allowed by your policy
13:02:12Playbook ran. 203.0.113.44 blocked
Remediated · alert closed

Allow well-understood actions to run the moment the verdict lands.

Waits for a person
AGENT-4471 · approval requested

Encoded PowerShell on FIN-WKS-04

13:02:14Isolate FIN-WKS-04? Beaconing every 60s to a rare ASN.
ApproveDeny
13:04:15Approved by nora.blake
13:04:16Playbook ran. Host isolated
Remediated · alert closed

Everything else waits for a person.

The actions

Only the ones you grant.

Isolate a device

Network-isolate a compromised machine in Microsoft Defender for Endpoint, full or selective, your call per incident.

Release a device

Lift the isolation the same way once it’s clean, so the machine is back on the network without anyone touching the console.

Disable an account

Kill a takeover fast: disable the account so the session an attacker is riding stops working.

Reset a password

Force a credential reset and issue a Temporary Access Pass, so the real owner can get back in and the attacker can’t.

Run an antivirus scan

Trigger an AV/EDR scan on a host to confirm what’s on it before you decide how far to go.

Block an indicator

Push an IP, domain, hash or URL to your block list before it spreads to the next machine.

Every action is cryptographically signed, forever.

Who proposed it, who approved it, when it ran, and what it did: three entries in the same hash-chained, append-only ledger the investigation writes to. When someone asks “why was that machine isolated?”, the answer is a verifiable line, not a memory.

How verification works

See a containment run, gated.

Twenty minutes. We walk a true positive through the agent, into the approval queue, and out to a sample playbook, and show you the signed entries it leaves behind.