not being detected by our systems is an impossible challenge.” To achieve you need a single picture rendered in real time, while at the same time it doesn’t look like your CPU is on fire. That’s the main reason people are not doing it right. “I think the technical barrier to entry is high. “It’s something that’s on the rise,” said Baig, “but it’s minuscule right now.” High end graphics processing units from companies like NVIDIA are entering the open market and are powerful tools for people with the technical skills to use them. Real time deepfakes are a much, much harder thing. If you think of Hollywood, an artist might spend days getting the rendering just right. “Real time deepfakes are still different from offline deepfakes. We then implement the latest techniques being developed by the broader cybersecurity community on deepfake detection for things like preventing propaganda, election fraud or extortion. “We are building out our muscles to understand how deflective technology works. “Deepfakes are a machine learning driven attack but we have access to the same, if not better technology as the bad guys,” explained Baig. Nonetheless, Basim Baig, head of cybersecurity for the Duolingo English Test, explained why the company has decided to appoint a lead engineer in deepfake technology as the company proactively tackles security threats. The same techniques can be used to make an online English test taker appear to be the genuine applicant, when in fact they are an impersonator being digitally masked to avoid detection.įace-swap apps have become widely available but the sophisticated software needed to convincingly render a live stream is luckily still beyond the budget and expertise of cheating rings. The technology was originally used in the adult entertainment industry to superimpose the faces of celebrities on to actors. The proliferation of ‘deepfake’ videos online – so called because of the manipulation of fake content to look or sound like someone else – have been fuelling a new wave of extortion and disinformation scams. Speaking at a Duolingo event in central London, senior security engineers explained that they are ahead of the curve in ensuring test integrity but continued vigilance and honest discussion is needed in the battle against fraud.
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