The DDoS attacks that flooded Dyn last month dont mean businesses should abandon it or other DNS service providers. The best way to go is to make sure critical Web sites are backed by more than one DNS provider, says Gartner analyst Bob Gill. The high-volume, high-velocity attack was based largely on a botnet backed by Mirai malware that finds and infects internet of things devices that are virtually defenseless against it. It’s impossible to know for sure what the motive for the attack is.”]