Submission timeline
2007–2026One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.
Top comments
As each surveillance technique falls in price, it can be layered with other signal sources. Today, gr-tempest can recreate monitor images from HDMI RF emissions, using a low-cost SDR, https://twitter.com/markopolophys/status/1459911025642414086. GNU Radio conference video: https://www.youtube.com/watch?v=QRycX0M0H4s. TEMPEST techniques have been known for decades, but only recently became accessible to pen-testers via OSS code and low-cost hardware, https://en.wikipedia.org/wiki/Tempest_%28codename%29 &…
Attempted to train it by typing for ~2 minutes. Basically typed everything on the GitHub page and tried getting predictions. Results were disappointing. I didn't see any accurate predictions. Even with the default p/q program I see mostly random results. I tested on a 15" Macbook Pro 2018 (latest version of keyboard that is softer to type of / less noisy)
The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.
HN stats
- Breakout years
- 2
- Total points
- 421
- Total comments
- 94
100+ points or 50+ comments
reference only — not used in Hall rules or ranking
reference only — not used in Hall rules or ranking
Every submission
| Date | Title as submitted | By | Points | Comments |
|---|---|---|---|---|
| 2018-11-29 | Real-Time Capturing Exact Keystrokes Using Sound | foobaw | 5 | 0 |
| 2018-11-29 | Kbd-audio – Tools for capturing and analysing keyboard input paired with | pplonski86 | 3 | 0 |
| 2018-11-30 | Guessing the pressed keyboard keys by analyzing the audio from the microphoneFirst breakout | Osiris30 | 194 | 33 |
| 2022-05-16 | Acoustic Keyboard EavesdroppingBest thread · Latest 20+ point return | taubek | 218 | 61 |
| 2024-05-11 | Acoustic Keyboard Eavesdropping | behnamoh | 1 | 0 |