Re: Why on earth
"@Lord Elpuss - "zero risk of getting hacked"
Really?
It's a line-of-sight data leak."
Yes really; a data leak is not the same as hacking. A data leak might be the result of a hack, but a leak and a hack are not the same thing. Plus it's not really a 'leak' if it's broadcasting by design.
Re your movie plot scenario, the critical system would need to have a receiving component in order to receive the modulated input from the laser pointer; an LED is transmit-only so your laser pointer would have nothing to communicate with.
Which of course won't stop Hollywood making a movie about it...