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Claim Denied: The Age of Repudiation

Writer's picture: Tyler WallTyler Wall

Updated: Dec 8, 2024


The age of repudiation


We are entering the age of repudiation. What used to be used as evidence for the truth can now be denied. Pictures and soon videos will be generated with anyone doing anything. This is troublesome because, besides public opinion, court systems use this evidence to prove and disprove a crime.



So, the question becomes, how do we, as security experts, add non-repudiation, or un-deniability, back into the media?



We will first enter a time ahead of us, a time long ago, where the only thing that mattered was a witness.



Is there anyone who saw this happen and can testify to the video's authenticity? If so, what is the credibility of that witness?



But more is needed for today, when AI often assists surveillance, and no one is around to see it unfold in real time.



What algorithms can we apply to legitimate recording and surveillance systems that prove AI didn't generate this? A hash of the video that includes the time and date and the hardware that captured it. But how can this not be spoofed?



It's not that the owner needs to know it's true; it's that the owner now has to prove it's true.


This new technology, which has yet to be introduced, needs to be publicly accessible. Anyone can upload evidence and check whether it's true. It needs to be a public service.



While there is a technology that can detect AI generation now, this will become increasingly difficult as video and photo proof become ultra-realistic. Whether one technology is further ahead, the detector or the generator will be a never-ending concern.



So, cameras and video systems will need to have non-repudiation built in. This will happen because they will be selling fewer and fewer cameras, and the market will demand it.



Today, it's an unknown number of how much we believe is true is not. And that number will continue to grow in this new age of repudiation.



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Tyler Wall is the founder of Cyber NOW Education. He holds bills for a Master of Science from Purdue University and CISSP, CCSK, CFSR, CEH, Sec+, Net+, and A+ certifications. He mastered the SOC after having held every position from analyst to architect and is the author of three books, 100+ professional articles, and ten online courses specifically for SOC analysts.


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