diff --git a/.gitignore b/.gitignore
index 95dfea7..2faf43d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,12 +7,14 @@
 
 # Crash log files
 crash.log
+crash.*.log
 
-# Ignore any .tfvars files that are generated automatically for each Terraform run. Most
-# .tfvars files are managed as part of configuration and so should be included in
-# version control.
-#
-# example.tfvars
+# Exclude all .tfvars files, which are likely to contain sensitive data, such as
+# password, private keys, and other secrets. These should not be part of version 
+# control as they are data points which are potentially sensitive and subject 
+# to change depending on the environment.
+*.tfvars
+*.tfvars.json
 
 # Ignore override files as they are usually used to override resources locally and so
 # are not checked in
@@ -21,10 +23,15 @@ override.tf.json
 *_override.tf
 *_override.tf.json
 
+# Ignore transient lock info files created by terraform apply
+.terraform.tfstate.lock.info
+
 # Include override files you do wish to add to version control using negated pattern
-#
 # !example_override.tf
 
 # Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan
 # example: *tfplan*
-.terraform.lock.hcl
+
+# Ignore CLI configuration files
+.terraformrc
+terraform.rc