Password rotation = changing/resetting of a password(s). Limiting the lifespan of a password reduces the risk from and effectiveness of password-based attacks and exploits, by condensing the window of time during which a stolen password may be valid.
[ IaaS vs PaaS vs Saas ]
'=' stands for 'you manage'
Infrastructure as a Service = App + Data + Runtime + Middleware + O/S
e.g. DigitalOcean, Linode, Rackspace, Amazon Web Services (AWS), Cisco Metapod, Microsoft Azure, Google Compute Engine (GCE)
Platform as a Service = App + Data
e.g. AWS Elastic Beanstalk, Windows Azure, Heroku
Software as a Service = Nothing!
e.g. Google Apps, Dropbox
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