Nishant, have you seen this thread on StackOverflow? It advises that distcp to S3 is secure by default. http://stackoverflow.com/questions/28375771/securely-transferring-data-from-hdfs-to-amazon-s3-using-distcp StackOverflow user NachoNachoMan suggested you can test this by placing a policy on the bucket that prevents putobject when securetransport=false. Also, you'll probably want to use 's3a' in your put command "s3n://path-to-s3" https://wiki.apache.org/hadoop/AmazonS3 ... View more