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(The author is a Reuters Breakingviews columnist. The opinions expressed are his own.) By Robert CyranNEW YORK, March 1 (Reuters Breakingviews) - Amazon's <AMZN.O> web-services outage on Tuesday is cause for internet alarm. Websites, apps, connected cameras and the like went dark after a breakdown of the $400 billion online giant's cloud-storage service. Amazon's dominance, Silicon Valley's self-confidence and users' reluctance to pay extra for backup all add up to rising risk for the internet of things. The internet was initially conceived as a massively redundant communications network that could survive a nuclear war. Yet as it matures, commercial realities and human nature are making the system more fragile. Companies find it convenient, simple and cheap to let Amazon, Google parent Alphabet <GOOGL.O> and Microsoft <MSFT.O> run the data centers and applications they need. Furthermore, the cloud business has aspects of a natural monopoly - the bigger a network, the more efficient it is both operationally and financially. So it came as a bit of a shock to everyone from hip programmers at Slack to bureaucrats at the Securities and Exchange Commission when Amazon's simple-storage service, known as S3, had problems at its East Coast operations. That made it impossible for many apps to pull up data, news publications to publish pictures and internet-enabled ovens to turn off for several hours. Breakingviews.com was among the sites affected. Even Amazon suffered an ironic glitch. The online dashboard it uses to indicate how well its giant Amazon Web Services unit is working flashed up green - implying all was well - because problems at S3 prevented it changing color. The blame isn't Amazon's alone. Customers could have reduced their exposure by doubling up on data storage even within AWS, since its West Coast systems weren't troubled. Better yet, they could have also signed contracts with Google and Microsoft. The problem is, it's easier and cheaper for optimistic developers and time-starved users to rely on a single service provider and its promises of near-perfect reliability. Sensors and web connectivity are being built into more and more devices. Thin margins, inexperience and complacency mean security and redundancy are often lacking. It's comical when someone can't turn off a remote light in their beach cottage; it's less funny when autonomous cars or life-saving medical equipment go haywire. Tuesday's outage may concentrate minds, but the danger will continue to grow. On Twitter https://twitter.com/rob_cyran CONTEXT NEWS - Multiple websites and apps failed on Feb. 28 after Amazon's simple-storage service, known as S3, had difficulty sending and receiving client data for several hours. The problems centered on Amazon Web Services' operations on the East Coast of the United States. - Websites that rely on AWS for storage and encountered problems included Slack, Quora and the Securities and Exchange Commission. Many news sites, including Breakingviews, could not publish pictures and experienced other disruptions. Multiple everyday objects with internet connections such as lightbulbs, stoves and cameras - also known as the internet of things - also had problems. - For previous columns by the author, Reuters customers can click on [CYRAN/] - SIGN UP FOR BREAKINGVIEWS EMAIL ALERTS http://bit.ly/BVsubscribe <^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Disruption in Amazon's cloud service ripples through internet [nL3N1GD5EJ] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^> (Editing by Richard Beales and Martin Langfield) (([email protected];)(Reuters Messaging: [email protected])) Keywords: AMAZON.COM AWS/BREAKINGVIEWS