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This New Tool Can Retrieve Pixelated Text from Redacted Documents

The practice of blurring out text using a method called pixelation may not be as secure as previously thought.
While the most foolproof way of concealing sensitive textual information is to use opaque black bars, other redaction methods like pixelation can achieve the opposite effect, enabling the reversal of pixelized text back into its original form.
Dan Petro, a lead researcher at offensive

Source:: The Hackers News