Prepending single letters to key words makes BPE and WordPiece text classifiers misclassify malicious prompts as benign, while the tested Unigram-based models resist the trick.
Hotflip: White- box adversarial examples for text classification, 2018
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TokenBreak: Bypassing Text Classification Models Through Token Manipulation
Prepending single letters to key words makes BPE and WordPiece text classifiers misclassify malicious prompts as benign, while the tested Unigram-based models resist the trick.