HiI viewed the bash script that resets Linux password 
(http://download.cloud.com/templates/4.2/bindir/cloud-set-guest-password.in)It 
seems that it doesn't use a secure way for transferring password string to 
instance.Instances on a shared network can sniff password requests and export 
requested password of other instances.I suggest to use SSL (https) instead of 
plan text.Regards

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