diff --git a/Dockerfile b/Dockerfile
index e7146a888..54302ff27 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# Copyright (c) HashiCorp, Inc.
+# Copyright IBM Corp. 2013, 2025
 # SPDX-License-Identifier: BUSL-1.1
 
 # ========================================================================
diff --git a/acctest/plugin/component_acc_test.go b/acctest/plugin/component_acc_test.go
index 14d0e5702..b729f5069 100644
--- a/acctest/plugin/component_acc_test.go
+++ b/acctest/plugin/component_acc_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 // component_acc_test.go should contain acceptance tests for plugin components
diff --git a/acctest/plugin/plugin_acc_test.go b/acctest/plugin/plugin_acc_test.go
index c9eec1fbc..eb6e0f884 100644
--- a/acctest/plugin/plugin_acc_test.go
+++ b/acctest/plugin/plugin_acc_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 // plugin_acc_test.go should contain acceptance tests for features related to
diff --git a/acctest/testing.go b/acctest/testing.go
index f88d2dde3..88bccc25a 100644
--- a/acctest/testing.go
+++ b/acctest/testing.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package acctest
diff --git a/acctest/testing_test.go b/acctest/testing_test.go
index 85364bd11..c8f8a233f 100644
--- a/acctest/testing_test.go
+++ b/acctest/testing_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package acctest
diff --git a/background_check.go b/background_check.go
index 30a0a65e2..8d8d041f1 100644
--- a/background_check.go
+++ b/background_check.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 //go:build !openbsd
diff --git a/background_check_openbsd.go b/background_check_openbsd.go
index 0fc5574ba..06e98cf94 100644
--- a/background_check_openbsd.go
+++ b/background_check_openbsd.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package main
diff --git a/builder/file/artifact.go b/builder/file/artifact.go
index 4c33f6d45..5d0e9b7f3 100644
--- a/builder/file/artifact.go
+++ b/builder/file/artifact.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package file
diff --git a/builder/file/artifact_test.go b/builder/file/artifact_test.go
index 02df6c2ae..40437009e 100644
--- a/builder/file/artifact_test.go
+++ b/builder/file/artifact_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package file
diff --git a/builder/file/builder.go b/builder/file/builder.go
index 34c9fa2cd..6ae09a14d 100644
--- a/builder/file/builder.go
+++ b/builder/file/builder.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package file
diff --git a/builder/file/builder_test.go b/builder/file/builder_test.go
index 5248318a4..8c1962862 100644
--- a/builder/file/builder_test.go
+++ b/builder/file/builder_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package file
diff --git a/builder/file/config.go b/builder/file/config.go
index 244490a36..ff28a60b3 100644
--- a/builder/file/config.go
+++ b/builder/file/config.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 //go:generate packer-sdc mapstructure-to-hcl2 -type Config
diff --git a/builder/file/config_test.go b/builder/file/config_test.go
index b6692495b..4df8ad2a5 100644
--- a/builder/file/config_test.go
+++ b/builder/file/config_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package file
diff --git a/builder/file/version/version.go b/builder/file/version/version.go
index 2620294cd..de3f1a717 100644
--- a/builder/file/version/version.go
+++ b/builder/file/version/version.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package version
diff --git a/builder/null/artifact_export.go b/builder/null/artifact_export.go
index 5a6856290..bb0382536 100644
--- a/builder/null/artifact_export.go
+++ b/builder/null/artifact_export.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package null
diff --git a/command/validate.go b/command/validate.go
index 2f774f3f0..978954a9f 100644
--- a/command/validate.go
+++ b/command/validate.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package command
diff --git a/datasource/hcp-packer-artifact/data.go b/datasource/hcp-packer-artifact/data.go
index f148c3a35..f7160928c 100644
--- a/datasource/hcp-packer-artifact/data.go
+++ b/datasource/hcp-packer-artifact/data.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 //go:generate packer-sdc struct-markdown
diff --git a/fix/fixer_amazon_private_ip.go b/fix/fixer_amazon_private_ip.go
index f2ca9a269..1647def14 100644
--- a/fix/fixer_amazon_private_ip.go
+++ b/fix/fixer_amazon_private_ip.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package fix
diff --git a/fix/fixer_amazon_private_ip_test.go b/fix/fixer_amazon_private_ip_test.go
index 7d78e396b..4adf5abd7 100644
--- a/fix/fixer_amazon_private_ip_test.go
+++ b/fix/fixer_amazon_private_ip_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: BUSL-1.1
 
 package fix