Just in case you’re one of the people out there who still doesn’t believe in “the cyber” — it appears that the Russian military served malicious cell-phone apps to the Ukrainian army that allowed them to track a particular artillery cannon.
The legitimate version of the Android app helped its operator use the 1960’s-era former Soviet howitzer. The trojanized version of this application did just the same, except it also phoned home to Russian military intelligence with its location. In addition to giving the Russian army valuable information about troop movements in general, it also led to the destruction of 80% of the cannons in question over two years.
The cited article goes into depth about how certain it is that a hacking group, referred to as FANCY BEAR, are nearly certainly responsible for the attack. The exploit has fingerprints that are not widely known outside of the security research community, and the use of the exploit against the Ukrainian army pretty much ties FANCY BEAR to the Russian military.
This is also the same exploit that was used against the Democratic National Committee in the United States. Attribution is one of the hardest parts of white-hat hacking — attackers don’t want to be found and will leave misleading clues when they can — but the use of the same proprietary malware in these two attacks is pretty convincing evidence that Russian military intelligence has also hacked into US political parties and NGOs.
(Banner image by Vitaly Kuzmin, CC-BY-SA 3.0.)
The hardware is simple. There’s the Raspberry-Pi — he’s got instructions on making it work with the Pi2, Pi2+, Pi3 or the Pi0. Since the Pi’s have limited audio capabilities, he’s using a DAC, the 
