Credit and debit card data must be redacted using four midline ellipses [• • • •].

University of Michigan - Ann Arbor

Midline ellipses [• • •] are bulleted characters that partially hide sensitive data. They indicate when a number, such as a credit card or Social Security number, is not entirely visible.

Redacting numbers

To redact most numbers, like Social Security numbers, use three midline ellipses [• • •].

You can use this format across typefaces and platforms:

Place two regular spaces before the first midline ellipse.
Then add a thin space between each midline ellipse and after the final one.

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