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Never, Ever, Ever Use Pixelation for Redacting Text


See why you should never use pixelation for redacting text and why it is a surefire way to get your data leaked. Learn from security researcher Dan Petro.

Inherent to this whole problem is the assumption that when we guess a correct character, we expect the resulting pixelated version of it to mostly resemble the challenge image. We challenge you to decode the below blurred message and submit your entry to win a $50 Amazon gift card and exclusive Bishop Fox SWAG (awarded to first 5 correct submissions). The last thing you need after making a great technical document is to accidentally leak sensitive information because of an insecure redaction technique.

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Photo of pixelation

pixelation

Photo of redacting text

redacting text