### 2.4.211-20260407 ISO image released on 2026/04/07


### Download and Verify

2.4.211-20260407 ISO image:  
https://download.securityonion.net/file/securityonion/securityonion-2.4.211-20260407.iso
 
MD5: 35ECDD0BC10E56874D9F5725CA6C5888  
SHA1: 30CE6CB0ED0059A3260368E4F296B8DBA381F9CD  
SHA256: 185D8CF49CD3BFDD8876B8DDE48343DA90804B0C0EC3EADF0AD90D29C55E72B7  

Signature for ISO image:  
https://github.com/Security-Onion-Solutions/securityonion/raw/2.4/main/sigs/securityonion-2.4.211-20260407.iso.sig

Signing key:  
https://raw.githubusercontent.com/Security-Onion-Solutions/securityonion/2.4/main/KEYS  

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

Download and import the signing key:  
```
wget https://raw.githubusercontent.com/Security-Onion-Solutions/securityonion/2.4/main/KEYS -O - | gpg --import -  
```

Download the signature file for the ISO:  
```
wget https://github.com/Security-Onion-Solutions/securityonion/raw/2.4/main/sigs/securityonion-2.4.211-20260407.iso.sig
```

Download the ISO image:  
```
wget https://download.securityonion.net/file/securityonion/securityonion-2.4.211-20260407.iso
```

Verify the downloaded ISO image using the signature file:  
```
gpg --verify securityonion-2.4.211-20260407.iso.sig securityonion-2.4.211-20260407.iso
```

The output should show "Good signature" and the Primary key fingerprint should match what's shown below:
```
gpg: Signature made Mon 06 Apr 2026 02:58:51 PM EDT using RSA key ID FE507013
gpg: Good signature from "Security Onion Solutions, LLC <info@securityonionsolutions.com>"
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: C804 A93D 36BE 0C73 3EA1  9644 7C10 60B7 FE50 7013
```

If it fails to verify, try downloading again. If it still fails to verify, try downloading from another computer or another network.

Once you've verified the ISO image, you're ready to proceed to our Installation guide:  
https://securityonion.net/docs/installation