It is one of three things :
1. The machine got hacked - Someone managed to find a way to hack the ATM and was just showing off.
2. The ATM malfunctioned - The hardware or software malfunctioned and it pumped out money like crazy!
3. It was a publicity stunt - Something like this will draw a lot of attention, so the company who owns this machine did this on purpose to draw attention to the machine.
In any way, it did draw a lot of attention and I think a lot of people are sleeping next to that machine in the hope that it would do this again.
1. The machine got hacked - Someone managed to find a way to hack the ATM and was just showing off.
2. The ATM malfunctioned - The hardware or software malfunctioned and it pumped out money like crazy!
3. It was a publicity stunt - Something like this will draw a lot of attention, so the company who owns this machine did this on purpose to draw attention to the machine.
In any way, it did draw a lot of attention and I think a lot of people are sleeping next to that machine in the hope that it would do this again.