SECOPS

Sweep public S3 objects for secrets and lock down on detection

On a schedule, scans publicly readable S3 objects for embedded credentials; on a hit it makes the object private, rotates the exposed key, and files a Linear remediation ticket.

CategorySecOps
Enginesim
Difficultyadvanced
Triggerschedule
Steps6
Setup~25 min

How it runs

The automated pipeline, trigger to output.

  • TriggerScheduled sweep fires
  • ActionList and download public S3 objectsAWS S3
  • LogicBranch: exposed secret vs clean object
  • ActionSet object ACL to privateAWS S3
  • ActionRotate the exposed credentialShell
  • OutputOpen Linear remediation ticketLinearLinear

What it does

Periodically enumerates publicly accessible objects in your S3 buckets and scans their contents for leaked credentials, config secrets, and private keys. When it finds an exposed secret in a public object, it immediately revokes public access, rotates the leaked credential, and opens a Linear ticket so the root cause gets fixed.

When to use it

Use it when teams ship config files, backups, or build artifacts to S3 and occasionally leave them world-readable with secrets inside. This is for catching the accidental public exposure that perimeter tools miss because the bucket itself is intentionally public.

How it works

  1. 1A schedule trigger kicks off the sweep.
  2. 2The flow lists publicly readable objects and downloads candidates for scanning.
  3. 3It runs credential and entropy detection on each object body.
  4. 4A logic branch separates exposed-secret hits from clean objects.
  5. 5For a hit it sets the object ACL to private and rotates the leaked key via a shell step.
  6. 6It opens a Linear ticket with the bucket, key, and credential type for permanent remediation.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect AWS S3Buckets, objects, signed URLs.
  2. 2
    Connect ShellRun sandboxed commands inside the workspace.
  3. 3
    Connect LinearIssues, projects, cycles, triage.
  4. 4
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  5. 5
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  6. 6
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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