### Cold War> Challenge statement:> > A geopolitical activity that is pursued through economic and political actions, propaganda, acts of espionage or proxy wars and without direct military action is known as a Cold War. This type of war does not refer to conflict of seasons, but this challenge might.
Solution:1. after downloaded the text file, we realized this challenge is **whitespace steganography**.
2. we can use SNOW program in windows to decrypt it [SNOW Program](http://www.darkside.com.au/snow/) or stegsnow in linux to decrypt it
```windows command: SNOW.EXE -C cold_war.txt
linux: stegsnow -C cold_war.txt 
flag{do_not_use_merriam_webster}```
![cold-war result](https://github.com/m0nkeyt3ch/CTFs-Writeups/blob/master/HacktivityCon-CTF-2020/Image/cold-war.png?raw=true)      
3. we found the flag is 'flag{do_not_use_merriam_webster}'
FLAG: **flag{do_not_use_merriam_webster}**