ae6933e Sep 8, 2016
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ISO image:

Signature for ISO image:

Signing key:

For example, here are the steps you can use on most Linux distributions to download and verify our Security Onion ISO image.

Download the signing key:


Import the signing key:

gpg --import KEYS

Download the signature file for the ISO:


Download the ISO image:


Verify the downloaded ISO image using the signature file:

gpg --verify securityonion- securityonion-

The output should show "Good signature" and the Primary key fingerprint should match what's shown below:

gpg: Signature made Sat 03 Sep 2016 06:50:39 AM EDT using RSA key ID ED6CF680
gpg: Good signature from "Doug Burks <>"
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.
Primary key fingerprint: BD56 2813 E345 A068 5FBB  91D3 788F 62F8 ED6C F680

Once you've verified the ISO image, you're ready to proceed to our Installation guide: