Substack confirms data breach affects users’ email addresses and phone numbers
Substack said that customer data was accessed in October 2025, but wasn’t discovered until early February.
Substack
Substack launches a TV app
The move comes as Substack has been investing more heavily in video and livestreaming, as it looks to compete with platforms like YouTube and Patreon for both creators and viewers.
Substack raises $100M from Chernin Group, Andreessen Horowitz, Skims CEO and more
The New York Times reports that the funding brings Substack’s valuation to $1.1 billion, almost 70% higher than its 2021 valuation of $650 million.
Substack brings new updates to livestreaming as it increases video push
Substack announced new features aimed at helping creators grow and promote their livestreams.