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Windows SmartScreen technology is particularly effective at preventing untrained users from
running files of unknown provenance that have a greater-than-normal chance of being malicious.
When SmartScreen identifies a file that has not yet established a reputation, it blocks execution and
displays a warning message, similar to the one shown in Figure 5-8.
FIGURE 5-8 SmartScreen protection works even with non-Microsoft browsers. This warning message appears
when you download and attempt to run an executable program that has been flagged as possibly suspicious.
Local administrators can override SmartScreen blocks manually. If you want to disable the
SmartScreen technology or adjust its behavior (for example, to prevent users from overriding
SmartScreen actions), you can use Group Policy settings to do so.
Managing privacy
As Windows has evolved over three decades, its connections to online information sources have grown
ever tighter. That information flow works in both directions, with Windows apps able to send and
retrieve files, email messages, and other data using systemwide connections to cloud-based services.
Windows itself regularly gathers diagnostic information as an essential element of the “Windows as a
Service“ model.
Windows consumers and small businesses can exercise control over this information flow using
options in the Privacy section of the Settings app, as shown in Figure 5-9. Domain administrators
can use Group Policy to impose additional controls over privacy settings.
CHAPTER 5 Security and privacy in Windows 10 71