What I Learned From the Hacker Who Spied on Me

Our columnist asked an ethical hacker to get into as many of her webcams as he could. Along the way she identified important tips for keeping our computers safe.

Should you cover your webcam? WSJ's Joanna Stern asked an ethical hacker to get into as many of her webcams as he could. In the process, she identified important tips for being safer online. Photo: Natalia Osipova/The Wall Street Journal.

When my nanny sends me a photo of my 18-month-old son busy at play, my immediate thought: He’s a genius.

When a hacker sent me a photo of my son, after breaking into the baby monitor on my Wi-Fi network, my thought: I’m an idiot.

(My editor deleted an expletive from that sentence.)

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