Digital Self-Defense

1. Digital Self-Defense
By Henrik Jacobsen

2. –Henrik Jacobsen
“I have no degree in cryptography - All I know is
from attending CryptoParties, attending security
speaks and watching/reading security related
material. ”

3. About Henrik Jacobsen
Age: 32 or 100000
Graduated in computer science,
computer scientist
7½+ years experiance with
software development
Currently: Prosa - as Political
Consultant
Mantra: KISS!
Interested in Pentest and Privacy/
Encryption!

4. Topics
Digital Tracks
Disc Encryption
VPS/VPN in practice
Tor
Open Whisper System - and apps using this system
Tails

5. Digital tracks
Cookie tracking
SSO - Single Sign on
Browser exploits - hidden on websites.
BeEF - just as example.

6. Disc encryption
If PC gets lost/stolen - data is secure.
Linux, Mac and Windows all have build in encryption.
Some open-source products out there.
Truecrypt recommends vendor pree installed encryption:
http://www.pcworld.com/article/2304851/so-long-
truecrypt-5-encryption-alternatives-that-can-lock-down-
your-data.html

7. VPS / VPN
On a unsecure or public wifi - Use VPN.
VPN ensures all your traffic is encrypted from you to
the VPN gateway.
VPS - Virtual Privat Server, handy to setup a VPN
Tomato or DD-WRT Firmware in own router

8. DD-WRT is a Linux based alternative OpenSource
firmware suitable for a great variety of WLAN routers
and embedded systems. The main emphasis lies on
providing the easiest possible handling while at the
same time supporting a great number of functionalities
within the framework of the respective hardware
platform used.

11. Started with US Naval
Research Laboratory
founds.
Tool to easily hide you
and your communication
with others on the web.
Used to by-pass online
surveillance
The Onion Router - TOR
3 RANDOM machine in
EVERY request!
Exit and Relay nodes
no node has both
sender and receiver ip.

13. Open Whisper System
Non profit softwaregroup - making end-to-end
encryption on Voice and Messaging.
Know for making Signal
Collaborating with Whatsapp - 1 billion users

14. Tails - Privacy for anyone
anywhere
Debian based OS
Made to pipe all traffic over TOR
Live boot ensures no data is saved local
build in encryption - state of the art
Even MAC-adresse is changed.