Run This
Code:
dpkg -S $(which ubuntu-security-status)
you should see an output like
update-manager-core: /usr/bin/ubuntu-security-status
it is part of update-manager-core which should be installed by default
to execute it open the terminal and run
this is mine
2049 packages installed, of which:
1609 receive package updates with LTS until 4/2025
313 could receive security updates with ESM Apps until 4/2030
3 packages are from third parties
124 packages are no longer available for download
Packages from third parties are not provided by the official Ubuntu
archive, for example packages from Personal Package Archives in
Launchpad.
For more information on the packages, run 'ubuntu-security-status
--thirdparty'.
Packages that are not available for download may be left over from a
previous release of Ubuntu, may have been installed directly from a
.deb file, or are from a source which has been disabled.
For more information on the packages, run 'ubuntu-security-status
--unavailable'.
Enable Extended Security Maintenance (ESM Apps) to get 1 security
update (so far) and enable coverage of 313 packages.
This machine is not attached to an Ubuntu Advantage subscription.
See
https://ubuntu.com/advantage