This file is indexed.

/usr/share/apt-setup/release-files/security.ubuntu.com/xenial-security/ is in ubiquity 18.04.14.

This file is owned by root:root, with mode 0o755.

File Mime Type Owner Mode Size
..
/usr/share/apt-setup/release-files/security.ubuntu.com/xenial-security/Release text/plain root:root 0o644 62.0 KB
/usr/share/apt-setup/release-files/security.ubuntu.com/xenial-security/Release.gpg application/pgp-signature root:root 0o644 933 bytes