Live data from Hacker News

NSA, FBI, and CISA Release Cybersecurity Information Sheet on Deepfake Threats

cisa.gov

41–50 of 195 posts

Re: NSA, FBI, and CISA Release Cybersecurity Information Sheet on Deepfake Threats

#42
These are some of the very same government entities that were caught working with their surrogates at social media companies to censor speech that they declared misinformation. In their vernacular, misinformation may be 100% true information that goes against the narrative that they want to promote.

Re: NSA, FBI, and CISA Release Cybersecurity Information Sheet on Deepfake Threats

#43

Images and video that goes against the approved government and/or media narratives == 'deepfake' .

No idea why you're being downvoted. Governments the world over propagate disinformation every single day with absolute impunity. Yesterday I was reading this article about the day the USA almost accidentally nuked itself: https://en.wikipedia.org/wiki/1961_Goldsboro_B-52_crash > The Pentagon claimed at the time that there was no chance of an explosion and that two arming mechanisms had not activated. > A United State…

Hacker News downvotes anything that makes them feel unsafe

Re: NSA, FBI, and CISA Release Cybersecurity Information Sheet on Deepfake Threats

#44

Earlier quoted context omitted.

The vast majority of uses for deep fakes is not for content that would appear on an official site: surreptitious videos of CEO/Politician doing illegal or embarrassing behaviour, racist tweets and emails from when they were college students etc.

At the same time, now when a sex tape comes out for someone they can claim it's a deepfake.

But will that make a difference?

Re: NSA, FBI, and CISA Release Cybersecurity Information Sheet on Deepfake Threats

#45
post #32

Earlier quoted context omitted.

There are already coming cameras which sign the data on the fly with help of hardware security modules. Only that can be truly verifiable. Adding signature after recording works to certain degree, but it still does not guarantee that the content is what the camera saw.

How would that work with video editing? Like if someone records something and then trims it for length or needs to combine multiple streams. Seems like hardware level verification only goes so far.

For editing it does not matter if you just remove or move frames. Video is just a series frames and each of them are signed, each frame can be validated if the content is unmodified. If the same root key is used for another stream, then frames can be combined easily.

I don't know audio well enough how it happens there. But potentially it can be signed in chunks as well.

Of course, one needs to consider risks if editing can make content appear different than originally intended, when the video as "whole" is not signed. But for that, different entity can be used again.

Re: NSA, FBI, and CISA Release Cybersecurity Information Sheet on Deepfake Threats

#46

Entities like CFOs and political leaders will have to start cryptographically signing their statements. There is no practical way to detect fakes after the fact.

Really? How about not using unofficial channels for statements? I mean, what is new to this problem. Other than it is somewhat cheaper to pair the fake statement with the person responsible reading it out laud. Department press release -> Reuters -> News paper -> reader No signing required. The reader can verify the press release of he wants to.

This assumes people are consuming news through official channels which I don't think is true in a lot of cases. For many people, news is whatever pops up in their facebook/instagram/twitter feed, and it's relatively easy to slip fake content in there.

Re: NSA, FBI, and CISA Release Cybersecurity Information Sheet on Deepfake Threats

#47
post #32

Earlier quoted context omitted.

All official materials should primarily be posted on the original authors' websites and signed using asymmetric cryptography. Furthermore, new open standards should be established to enable the presentation of such signatures/verification on well-known platforms like YouTube, FB, etc. These platforms should always provide a clear reference to the original material along with its digital signature. For example, when w…

There are already coming cameras which sign the data on the fly with help of hardware security modules. Only that can be truly verifiable. Adding signature after recording works to certain degree, but it still does not guarantee that the content is what the camera saw.

There's already things like eyeWitness (an app): https://www.eyewitness.global/

But even hardware can be hacked/bypassed if the effort is worth it.

Re: NSA, FBI, and CISA Release Cybersecurity Information Sheet on Deepfake Threats

#48

Earlier quoted context omitted.

At the same time, now when a sex tape comes out for someone they can claim it's a deepfake.

But will that make a difference?

Time will tell. I think the answer is yet. I am inclined to avoid naming specific, relatively recent instances, but I think it would be fair to say that we're in a world with very high skepticism of the media and politicians have been taking that into account by claiming that the news is simply lying, that what they're reading is fake, etc.

Re: NSA, FBI, and CISA Release Cybersecurity Information Sheet on Deepfake Threats

#49

These are some of the very same government entities that were caught working with their surrogates at social media companies to censor speech that they declared misinformation. In their vernacular, misinformation may be 100% true information that goes against the narrative that they want to promote.

This again? They pointed out posts they believed violated places like Twitter's TOS and in the case of Twitter most of the time Twitter left them up and took no action against the material. A pretty shoddy censorship campaign in my opinion, it was blown up by Elon and the partisan actors he released the data to to support a political point they've been griping about for ages.

Re: NSA, FBI, and CISA Release Cybersecurity Information Sheet on Deepfake Threats

#50

These are some of the very same government entities that were caught working with their surrogates at social media companies to censor speech that they declared misinformation. In their vernacular, misinformation may be 100% true information that goes against the narrative that they want to promote.

this story writes itself like a children's book

"beware of false information" said the people who keep the biggest secrets

Post reply on HN