/usr/share/php/Nette/Security/ is in php-nette 2.1.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Nette/Security/AuthenticationException.php
/usr/share/php/Nette/Security/Diagnostics/
/usr/share/php/Nette/Security/Diagnostics/UserPanel.php
/usr/share/php/Nette/Security/Diagnostics/templates/
/usr/share/php/Nette/Security/Diagnostics/templates/UserPanel.panel.phtml
/usr/share/php/Nette/Security/Diagnostics/templates/UserPanel.tab.phtml
/usr/share/php/Nette/Security/IAuthenticator.php
/usr/share/php/Nette/Security/IAuthorizator.php
/usr/share/php/Nette/Security/IIdentity.php
/usr/share/php/Nette/Security/IResource.php
/usr/share/php/Nette/Security/IRole.php
/usr/share/php/Nette/Security/IUserStorage.php
/usr/share/php/Nette/Security/Identity.php
/usr/share/php/Nette/Security/Permission.php
/usr/share/php/Nette/Security/SimpleAuthenticator.php
/usr/share/php/Nette/Security/User.php