diff --git a/checksums.txt b/checksums.txt
index 6fbddc41..5c931f59 100644
--- a/checksums.txt
+++ b/checksums.txt
@@ -1,3 +1,8 @@
+16.04.4.3 ISO image
+md5sum dbfb0121ab106d2e93366e259533a66e
+sha1sum 86181131357c87704c9e5323ee6d848461c762a9
+sha256sum af133a8cd32a306604cde761b27c3fd41fae1bb5a685bc812028c5934c03f6f8
+
 16.04.4.2 ISO image
 md5sum b9c3908c1613f0ca92248810ba7c7b66
 sha1sum 4f9758144b27d965e7e7a759a8203aa684508957
diff --git a/sigs/securityonion-16.04.4.3.iso.sig b/sigs/securityonion-16.04.4.3.iso.sig
new file mode 100644
index 00000000..9099fe3f
Binary files /dev/null and b/sigs/securityonion-16.04.4.3.iso.sig differ
diff --git a/testing/Verify_ISO_16.04.4.3.md b/testing/Verify_ISO_16.04.4.3.md
new file mode 100644
index 00000000..d89ebb67
--- /dev/null
+++ b/testing/Verify_ISO_16.04.4.3.md
@@ -0,0 +1,51 @@
+### 16.04.4.3 ISO image built on 2018/07/13
+
+### Download and Verify
+
+16.04.4.3 ISO image:  
+https://github.com/Security-Onion-Solutions/security-onion/releases/download/v16.04.4.3_20180713/securityonion-16.04.4.3.iso
+
+Signature for ISO image:  
+https://github.com/Security-Onion-Solutions/security-onion/raw/master/sigs/securityonion-16.04.4.3.iso.sig  
+
+Signing key:  
+https://raw.githubusercontent.com/Security-Onion-Solutions/security-onion/master/KEYS  
+
+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:  
+```
+wget https://raw.githubusercontent.com/Security-Onion-Solutions/security-onion/master/KEYS
+```
+
+Import the signing key:  
+```
+gpg --import KEYS
+```
+
+Download the signature file for the ISO:  
+```
+wget https://github.com/Security-Onion-Solutions/security-onion/raw/master/sigs/securityonion-16.04.4.3.iso.sig
+```
+
+Download the ISO image:  
+```
+wget https://github.com/Security-Onion-Solutions/security-onion/releases/download/v16.04.4.3_20180713/securityonion-16.04.4.3.iso
+```
+
+Verify the downloaded ISO image using the signature file:  
+```
+gpg --verify securityonion-16.04.4.3.iso.sig securityonion-16.04.4.3.iso
+```
+
+The output should show "Good signature" and the Primary key fingerprint should match what's shown below:
+```
+gpg: Signature made Fri 13 Jul 2018 04:28:03 PM EDT using RSA key ID ED6CF680
+gpg: Good signature from "Doug Burks <doug.burks@gmail.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: 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:  
+https://github.com/Security-Onion-Solutions/security-onion/wiki/Installation