Also means
fuse
Usage Note
Sicherung means a data backup (from sichern, to secure), but also an electrical fuse, so context matters. A backup copy is precisely a Sicherungskopie.
Examples
"Mach regelmäßig eine Sicherung deiner Daten."
Natural Translation
Regularly make a backup of your data.
Literal Translation
Make regularly a backup of-your data.
Related Words
Explore German by topic