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Kristin Lewis designs products at Aura, a digital security company.She was surprised when her 7-year-old managed to make an unauthorized purchase.That led to a more open dialogue and weekly tech check-ins with her kids.

This as-told-to essay is based on a conversation with Kristin Lewis, senior vice president of product at Aura, a company with a suite of products intended to help people stay safe online. It has been edited for length and clarity.

A lot of my work is about...

Continue Reading I work at a digital security company and thought I was keeping my kids safe from online dangers. My 7-year-old proved me wrong.