Forbes contributors publish independent expert analyses and insights. Karin Eldor covers entrepreneurs and leaders in fashion & lifestyle. The momentum hasn’t slowed. Every time I went to hit publish ...

If you’re impacted by the security incident, you’ll hear directly from the brand with an email from Substack's CEO.

The hacker claims to have stolen nearly 700,000 Substack user records, including email addresses and phone numbers.

"We're moving quickly," Farrah Storr, head of international at Substack, tells THR after hiring Mark Swierszcz as its new Canadian head of partnerships, with more country hires in the works worldwide.

Substack states that the security flaw has now been fixed and that a full investigation is underway. There are currently no ...