Packer builder amazon-ebs authentication. Is it encrypted?

Hi All, I just want to make sure the access_key and secret_keys are encrypted during
the packer build communications to AWS. The reason I ask is that within a couple hours
of me running my first packer build, Amazon locked my account for “suspicious activity” reasons. I have received no explanation from support. Still waiting on Carlos. There is
no one else in support that can explain it or unlock me, even though I have reset my keys and
root pw’s 3 times now at their request. This is the only thing I can think of is that maybe I am sending clear text keys ? Why Carlos, Why ? lol . It’s Monday and this started Fri. OMG.
“builders”: [
“type”: “amazon-ebs”,
"access_key": “blablablablabla”,
“secret_key”: “lettersAndstuffAndMoreStuffAndThenSomeMoreStuff”,
“region”: “us-east-1”,
“ami_name”: “my-packer-ami-1”,
“source_ami”: “ami-04505e74c0741db8d”,
“instance_type”: “t2.micro”,
“ssh_username”: “ubuntu”