Researchers in the UK claim to have translated the sound of laptop keystrokes into their corresponding letters with 95 percent accuracy in some cases.

That 95 percent figure was achieved with nothing but a nearby iPhone. Remote methods are just as dangerous: over Zoom, the accuracy of recorded keystrokes only dropped to 93 percent, while Skype calls were still 91.7 percent accurate.

In other words, this is a side channel attack with considerable accuracy, minimal technical requirements, and a ubiquitous data exfiltration point: Microphones, which are everywhere from our laptops, to our wrists, to the very rooms we work in.

8 points

Isn’t boffin a derogatory term like “nerd”?

What a dogshit headline.

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6 points

It’s The Register - think the Financial Times for IT but in the style of The Sun/any other British tabloid. They do it for the lulz, if you will - don’t get too hung up on the headlines as the content is top quality.

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7 points

It can be. Being a boffin, I’m not offended. Up to the individual if they choose to be offended.

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13 points

Still shitty journalism to refer to researchers publishing their research in that way.

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1 point

Meh, I wear such labels as badges of honor. I sacrificed a bit along the way to develop knowledge, skills, competence - I’ve earned it. Thanks for acknowledging it.

I also see such things in a humorous light. I mean us “boffins” can be such boffins at times. We can over-focus, get caught up on perfectionism, etc, etc. If’n ya can’t laugh at your own foibles, well, I don’t know what to say.

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10 points

Article also uses the term “eggheads”.

To go from keystroke sounds to actual letters, the eggheads recorded a person typing on a 16-inch 2021 MacBook Pro using a phone placed 17cm away and processed the sounds to get signatures of the keystrokes.

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2 points

Maybe a US/UK divide? At least in the UK boffin is relatively inoffensive depending on how it’s used. Eg if I build a fusion reactor in my garden my neighbour might say “wow, look at what this boffin did!” and it would be a complement where boffin is a stand in for a word like genius, only with a tounge in cheek touch of jealousy.

Thinking about it I would say that ‘nerd’ is typically putting someone down for their intelligence or interests, whereas boffin is a light insult while identifying the ‘boffin’ as being smarter than yourself.

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19 points

Can we normalise good but quiet keyboards. Like, I like the tactile feel of using a mechanical, but I hate the sound. Quieter mechanical keyboards aren’t a thing but they should be. Now as a security measure if nothing else.

Also Dvorak keyboards I guess

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11 points
*

Dvorak is a cypher of Qwerty tho. Anything typed in Dvorak but transcribed as english can be reliably identified and decyphered

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4 points

I went out of my way to find a keyboard with Cherry MX Clear switches. They’re basically a high-force tactile feel, but no clicky sound like MX Blue switches. I absolutely love them for typing, and I’ve been using them for years.

I’m not sure if there’s newer options now for silent switches? I know they had a couple models with extra internal damping.

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1 point

I used boba u4 silents on my custom keyboard. Absolutely love them. Wish they made a consumer-grade keyboard with them (or maybe they already do?) But I’ve been working on a MacBook recently and tbh the keyboard there is pretty good now. So next step for me is to build a low profile keyboard

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15 points

There are definitely quiet tactile switches. The reason why they can still make sound is because they’re bottoming out which you don’t have to do.

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8 points

As a partial solution, you can put o-rings in the keycaps. I had some of the bands for braces laying around at one point and used those, and it worked fairly well.

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4 points

normalise good but quiet keyboards

Oh man, if Topre became popular enough to bring the price down through scale that would be pretty rad

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3 points

Dvorak

vi tho.

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2 points

That awkward moment when you use Nano

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2 points

Up against the wall

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2 points

I always uninstall nano the first time it shows itself

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2 points

On my colemak keyboard I put arrow keys on another layer under where hjkl are on qwerty. Beyond that, most of the keys are remembered by mnemonic rather than position imo

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21 points

There are tons of quiet mechanical keyboards. I’m using a low profile optical switch that’s quieter than my mouse clicks

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1 point

Are those optical switches expensive though?

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1 point

No

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5 points

This is old news. This article was published on 7 Aug 2023.

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19 points

This method is far older than that, and it keeps popping up every so often as a “new” attack. First time I read about this method was in the early 2000’s, and I’m pretty sure it been done before that as well.

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4 points
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16 points

Some laptops like the Framework laptop have fingerprint sensors

Physical Security keys like NitroKeys or YubiKeys are another option

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9 points

I don’t see the relevance.

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16 points

You can use fingerprint or U2F to unlock your password manager and copy the password. That way you don’t have to type it in.

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0 points

That does nothing for keylogging through this method.

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5 points

Another advantage to the split keyboard

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11 points
*

This attack is useless in the real world.

That said, what gives you the idea a split keyboard (if they had a sample of you typing on it etc) would be any different than a normal one?

It is just another keyboard with a different sound profile.

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1 point

It was just a joke

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2 points
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You can remap and customise keys to be whatever you want. There’s even auto shift, so if I hold certain key just a bit longer than a regular tap, it will automatically capitalise or whatever the shift + key combo would result in. There are also multiple layers you can easily activate with a press of a button, so the layout is something totally different.

Example: https://configure.zsa.io/moonlander/layouts/default/latest/0/

Layer 0

Layer 1

Layer 2

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1 point
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