Lazy unattended upgrades what could go wrong

50unattended-upgrades

APT::Periodic::Update-Package-Lists "1";
APT::Periodic::Download-Upgradeable-Packages "1";
APT::Periodic::AutocleanInterval "7";
APT::Periodic::Unattended-Upgrade "1";
Unattended-Upgrade::Mail "**EMAIL HERE**";

// Automatically upgrade packages from these
Unattended-Upgrade::Origins-Pattern {
      "o=Debian,a=stable";
      "o=Debian,a=stable-updates";
      "o=Debian,a=*-backports";
      "origin=Debian,codename=${distro_codename},label=Debian-Security";
};

// You can specify your own packages to NOT automatically upgrade here
Unattended-Upgrade::Package-Blacklist {
//      "vim";
//      "libc6";
//      "libc6-dev";
//      "libc6-i686";

};

Unattended-Upgrade::MailOnlyOnError "true";
Unattended-Upgrade::Automatic-Reboot "false";

sources.list

#------------------------------------------------------------------------------#
#                   OFFICIAL DEBIAN REPOS
#------------------------------------------------------------------------------#

###### Debian Main Repos
deb http://deb.debian.org/debian/ stable main contrib non-free
deb-src http://deb.debian.org/debian/ stable main contrib non-free

deb http://deb.debian.org/debian/ stable-updates main contrib non-free
deb-src http://deb.debian.org/debian/ stable-updates main contrib non-free

deb http://deb.debian.org/debian-security stable/updates main
deb-src http://deb.debian.org/debian-security stable/updates main

deb http://ftp.debian.org/debian stable-backports main
deb-src http://ftp.debian.org/debian stable-backports main