Why it matters
Multimodal attacks emerging. Understanding shapes multimodal defense.
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The architecture
Image with hidden text (OCR).
Adversarial image patches.
Audio watermark payloads.
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How it works end to end
Text-in-image steganography.
Adversarial patches: visual perturbations.
Audio: ultrasonic + subliminal.
Defenses: modality-specific filtering.