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Enterprise Security Magazine | Saturday, April 01, 2023
The threat actors sent impersonated voicemails of a CEO to employees, asking them to donate to charitable, disaster relief causes through fake websites that submitted the funds to offshore accounts.
Fremont, CA: The creation of deepfakes is a process that uses Artificial Intelligence (AI) and Machine Learning to create forged images, audios, and videos. In recent years, technological advancements have made it easier to produce deepfake videos, according to the World Economic Forum (WEF). According to VMware, two out of three defenders report that deepfakes have been used to launch disinformation campaigns or influence operations.
In recent years, deepfake attacks have increased in number, such as the creation of holograms by fraudsters, which they used in video calls to pretend to be a chief communications officer, deceiving other executives into disclosing confidential information. It has been reported that threat actors have used voice cloning technologies in real-time to trick bank managers into sending $35 million to the attackers' account. The threat actors sent impersonated voicemails of a CEO to employees, asking them to donate to charitable, disaster relief causes through fake websites that submitted the funds to offshore accounts.
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Types of deepfakes:
• Textual deepfakes – Can be used to generate articles, poems, or blogs using a text generator.
• Artificial intelligence and video editing technology are used to create realistic-looking videos. A person's face can be swapped with another's or a filter is widely available on smartphones.
• Deepfake images – Images with fake bodies and faces can also be created using this technology in social media.
• Deepfake audio – This type of audio can include the tone and accent of a specific person.
• A real-time/live deepfake is one where audio and video clones are created in real-time, mimicking someone's identity. This technology allows threat actors to bypass security measures such as voice-based authentication.
How deepfakes are created?
Deepfakes are generated with the help of a machine learning technology called Generative Adversarial Networks (GANs). A realistic output is produced by running two neural networks at the same time. In the "Generator" network, forged images are produced as realistically as possible, and in the "Discriminator" network, forged images are compared to genuine images in order to determine which are real and which are not. Until the discriminator does not distinguish between a fake image and a generated one, the cycle continues.
How to Spot Deepfakes
The features or movements of deepfakes can be recognized as abnormal or unnatural. The lack of blinking and unnatural eye movement is clear indicators of deep fakes. It is harder for deepfake tools to replicate natural eye movements through body language. An unnatural expression or facial feature is often indicative of a deepfake. Lighting and facial features such as hair and teeth of an image or video may also seem out of sync.
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