Although vendor-written, this contributed piece does not promote a product or service and has been edited and approved by Network World editors.

The large scale DDoS attack on DYN last week interrupted access to many major web sites, and while the specifics of the attack have been widely analyzed, here are the important lessons learned:

* DDoS attacks are alive and well: A few years ago DDoS attacks were hot news, but reports died down as the focus shifted to news about social engineering attacks, large scale data breachs and insider trading schemes. DDoS attacks seemed like yesterday’s risk but they are very much alive and well.  In fact, they are back and stronger than ever.

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