[Born to Conserve]

URLs and bank accounts, SS#s, etc.

[PAR35]

This will give the NSA a new way to track what you are doing on the internet. Just plant microphones to pick up the audibly transmitted code.

[AZLiberty]

Back in the day, we used to call that a modem.

[Dr. Sivana]

Old technology. No different than an acoustic modem.

[W.]

Airgap? What’s that? SMH.

[tophat9000]

So R2D2 is going to be talking behind your back about you to his friends?

[Smokin' Joe]

I'm not a tech guy, and I didn't stay at a Holiday Inn, but I am looking for the latest way things can be used against us, well, because "Eternal vigilance is the price of freedom."

So, if I'm reading this right, someone with the 'right' tones could have your computer surf websites you might not ordinarily go to in your absence?

Not far from creating a web surfing history for anyone (to be used as evidence against them?)

Anything from jealous co-workers to unscrupulous police could load you up with a 'pattern' of web surfing to use as supporting evidence of your 'nefarious' lifestyle? (and possible prosecution or civil suit).

How many more control codes are there?

[Bobalu]

Morse Code anyone?

You can very easily send data using light or sound.

No problemo, an old trick.

[null and void]

In the audio band???

A sneeky dude would make the beeps and boops above the audio band.

[backwoods-engineer]

I find it hilarious that these young punks are amazed at “beeps and boops” carrying information. Do they have no idea what a modem is? No concept of information encoded on audio signals? I guess their generation doesn’t remember “you’ve got mail!” after a cacophony of “beeps and boops”, as the wet-behind-the-ears author puts it.