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The machine inactivity limit must be set to 15 minutes, locking the system with the screensaver.


Overview

Finding ID Version Rule ID IA Controls Severity
V-63669 WN10-SO-000070 SV-78159r1_rule Medium
Description
Unattended systems are susceptible to unauthorized use and should be locked when unattended. The screen saver should be set at a maximum of 15 minutes and be password protected. This protects critical and sensitive data from exposure to unauthorized personnel with physical access to the computer.
STIG Date
Windows 10 Security Technical Implementation Guide 2017-02-21

Details

Check Text ( C-64417r1_chk )
If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\

Value Name: InactivityTimeoutSecs

Value Type: REG_DWORD
Value: 0x00000384 (900)
Fix Text (F-69597r1_fix)
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Interactive logon: Machine inactivity limit" to "900" seconds".