System/Library/PrivateFrameworks/SpringBoardFoundation.framework
SBFSecureWindow.h
@interface SBFSecureWindow : SBFWindow
+ (BOOL)_isSecure;
@end
System/Library/PrivateFrameworks/SpringBoardFoundation.framework
@interface SBFSecureWindow : SBFWindow
+ (BOOL)_isSecure;
@end