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NoiseAttack is a Novel Backdoor That Uses Power Spectral Density For Evasion

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NoiseAttack is a new method of secretly attacking deep learning models. It uses triggers made from White Gaussian Noise to create several targeted classes in the model, rather than just one, like most current methods. 

This approach also helps avoid being easily detected, which makes it more effective than traditional single-target attacks.

The following cybersecurity researchers of the Department of Electrical, Computer and Biomedical Engineering from the University of Rhode Island discovered that “NoiseAttack,” uses power spectral density for evasion:-

  • Abdullah Arafat Miah
  • Kaan Icer
  • Resit Sendag
  • Yu Bi 

Technical analysis

Recent advancements in AI have led to its widespread use in various applications, from image recognition to language processing.

While the rapid adoption of AI is exciting, it has also introduced new security risks. One major vulnerability is backdoor attacks.

In these attacks, malicious individuals insert hidden triggers into AI models during the training process.

When the model encounters the trigger, it can be manipulated to produce a desired output, even if that output is incorrect or harmful.

This allows bad actors to control the model’s behavior in ways the developers never intended.

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A overview of the proposed NoiseAttack (Source - Arxiv)
An overview of the proposed NoiseAttack (Source – Arxiv)

NoiseAttack uses a special type of random noise called White Gaussian Noise (WGN) as the hidden trigger.

WGN is a type of noise that resembles the snow effect you see on the television set after the transmission has ended.

Unlike previous attacks that use visible patterns or image transformations, NoiseAttack employs the power spectral density of WGN to create an imperceptible, spatially distributed trigger. 

The attack is sample-specific, which means that it only affects predetermined victim classes and is multi-targeted which allows multiple incorrect outputs.

The researchers tested NoiseAttack on various datasets like:-

  • CIFAR-10
  • MNIST
  • ImageNet
  • MS-COCO

Not only that even they also tested the same on several types of models that we have mentioned below:-

  • ResNet50
  • VGG16
  • DenseNet
  • YOLOv5
NoiseAttack on Visual Object Detection (Source - Arxiv)
NoiseAttack on Visual Object Detection (Source – Arxiv)

They achieved high attack success rates during their tests while maintaining normal performance on clean inputs. Notably, NoiseAttack proved effective in both image classification and object detection tasks

Besides this, it successfully evaded state-of-the-art defense methods like GradCam, Neural Cleanse, and STRIP.

In terms of security, the evolving nature of AI highlights the need for more robust defense mechanisms and security measures in AI systems.

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Tushar Subhra
Tushar Subhra
Tushar is a Cyber security content editor with a passion for creating captivating and informative content. With years of experience under his belt in Cyber Security, he is covering Cyber Security News, technology and other news.

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