4 ms·

Ditto. Or even an old-school LED that indicates data transmission like the HDD LED in old computer cases. Make it in hardware so that if any data is sent throug

Ditto. Or even an old-school LED that indicates data transmission like the HDD LED in old computer cases. Make it in hardware so that if any data is sent through the wire, it lights up.

jachee 7y ago
People already complain about the price and battery life of current phones. I can’t imagine either of those things making either situation better.
- dandelany 7y ago
  You can get SMD 0603 LEDs that use ~1mA of power for a few pennies in bulk. Peanuts compared to the power usage and price of the rest of the phone.
- rimlicker 7y ago
  yeah that LED cost is going to drive my 1400 phone price up through the roof
kick 7y ago
HDD LED in old computer cases Old? I'll admit I haven't changed my case in a couple years, but mine currently has one, and I can't remember the last time I've used a desktop computer that didn't have one.
- notRobot 7y ago
  old, adj: Having lived or existed for a relatively long time; https://www.thefreedictionary.com/old https://www.thefreedictionary.com/old Old doesn't have to mean extinct :)
robin_reala 7y ago
Unfortunately those were immediately susceptible to tempest attacks, at least at old hard drive speeds.
- angry_octet 7y ago
  I think you are confusing this with data tx/rx lights for exfil[0]? I've never heard of a tempest attack (that is, revealing the data written via a side channel) on a hard drive light. [0] Guri et al, LED-it-GO https://arxiv.org/pdf/1702.06715.pdf https://arxiv.org/pdf/1702.06715.pdf
  - robin_reala 7y ago
    I think it’s this paper I remember that describes it as an “optical tempest” and talks about storage mechanism leakage: http://applied-math.org/acm_optical_tempest.pdf http://applied-math.org/acm_optical_tempest.pdf
    - angry_octet 7y ago
      Yeah it's type II in the Loughry schema. Still unfortunate if you're operating a high security air gapped network, but not squirting out secrets without being compromised first. It seems almost quaint to worry about this when so much software has web spyware baked into it -- but maybe we need a virtual spyware led that lights up every time something talks to Facebook/Google/etc tracking. The light would be blinking non-stop for many people.
iNate2000 7y ago
It would just never go out.

Ditto. Or even an old-school LED that indicates data transmission like the HDD LED in old computer cases. Make it in hardware so that if any data is sent through the wire, it lights up.

jachee 7y ago

People already complain about the price and battery life of current phones. I can’t imagine either of those things making either situation better.

dandelany 7y ago
You can get SMD 0603 LEDs that use ~1mA of power for a few pennies in bulk. Peanuts compared to the power usage and price of the rest of the phone.
rimlicker 7y ago
yeah that LED cost is going to drive my 1400 phone price up through the roof

kick 7y ago

HDD LED in old computer cases Old? I'll admit I haven't changed my case in a couple years, but mine currently has one, and I can't remember the last time I've used a desktop computer that didn't have one.

notRobot 7y ago
old, adj: Having lived or existed for a relatively long time; https://www.thefreedictionary.com/old https://www.thefreedictionary.com/old Old doesn't have to mean extinct :)

robin_reala 7y ago

Unfortunately those were immediately susceptible to tempest attacks, at least at old hard drive speeds.

angry_octet 7y ago
I think you are confusing this with data tx/rx lights for exfil[0]? I've never heard of a tempest attack (that is, revealing the data written via a side channel) on a hard drive light. [0] Guri et al, LED-it-GO https://arxiv.org/pdf/1702.06715.pdf https://arxiv.org/pdf/1702.06715.pdf
- robin_reala 7y ago
  I think it’s this paper I remember that describes it as an “optical tempest” and talks about storage mechanism leakage: http://applied-math.org/acm_optical_tempest.pdf http://applied-math.org/acm_optical_tempest.pdf
  - angry_octet 7y ago
    Yeah it's type II in the Loughry schema. Still unfortunate if you're operating a high security air gapped network, but not squirting out secrets without being compromised first. It seems almost quaint to worry about this when so much software has web spyware baked into it -- but maybe we need a virtual spyware led that lights up every time something talks to Facebook/Google/etc tracking. The light would be blinking non-stop for many people.

iNate2000 7y ago

It would just never go out.