Page 695 - Windows 10 May 2019 Update The Missing Manual: The Book That Should Have Been in the Box
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UP TO SPEED CLOUD-DELIVERED
PROTECTION: DEATH TO FIRST-TIME MALWARE
In the old days, everybody got the same viruses. Remember
ILOVEYOU and Blaster?
Nowadays, it’s different. Want to hear a shocking statistic?
According to Microsoft, 96 percent of malware that Windows
Defender blocks is found only once, on a single PC! That’s
how shape-shifty and fragmented viruses have become.
Clearly, trying to come up with a single virus-definitions file
that protects everybody is an increasingly outdated approach.
How on earth is Windows supposed to protect you against a
virus that nobody has ever seen before?
With cloud-delivered protection. It’s an artificially intelligent
virus expert online.
Whenever Windows encounters suspicious-seeming code on
your machine, it places a 10-second hold on running it. In the
meantime, it uploads that file to Microsoft’s cloud protection
servers, which perform some AI analysis; if they determine
that the file looks, smells, and feels like malware, Windows
sends a “do not open” command back to your PC, and you’re
instantly protected.
Microsoft now knows about this new malware, and it instantly
protects millions of other people, too.
Microsoft encourages you to leave “Automatic sample
submission” turned on; that’s the permission slip that lets your
PC submit the bad file to Microsoft for analysis.
Virus & threat protection updates reveals what definitions
database you’ve got. And there’s a big, fat “Check for updates”
button to download the latest one right now.

