Major distributed denial of service attacks shut down access to many major internet services such as Twitter and Netflix last Friday, October 21. Fast Company staffer Steven Melendex explains exactly what happened in this test and how hackers used to internet of things devices to generate this massive amount of digital traffic that shut down access to these services.

In the past security experts have warned of the lack of security in these devices and now have advice for users of these devices following Friday's hack:

Security experts advise users of IoT devices to take simple steps like changing default passwords and installing any security updates that manufacturers provide, but it can be difficult to make many such devices fully secure against a determined hacker. Some manufactures don't provide updates at all, and some only provide them through an insecure online channel, letting hackers effectively generate their own malicious updates...

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