The Basics of
Data Security:
Backups
CC-BY
Fabian M. Suchanek
hackers
Who is the biggest enemy to ur data?
evil governments
big companies
viruses/ransomware
data leaks
2
hackers
evil governments
viruses/ransomware
data leaks
you yourself
3
Who is the biggest enemy to ur data?
big companies
What can happen to your data
• theft
• loss
• hazards
• decay
• accidental deletion
• laptop failure
© Tim Gee
4
2018-02-17
Hard Disk Error
Please run the Hard Disk Test in System Diagnostics
What can happen to your data
5
2020-12-17
2023-01-06
A
ransomware
is a malicious software program
that makes your data unusable by encrypting it,
and requests a ransom (=money) to decrypt it.
Def: Ransomware
Total damage
in 2021: $20b
A company is
hit by ransom‐
ware every
11 seconds
6
All important data should live in at least 2 different places.
Backup your data!
+
some
other
place
7
Solution 1: Cloud Service
A cloud service automatically backs up your data.
(do not copy your data to the cloud service folder, move it there!)