TechRadar now have confirmation exactly how many people were affected by the December 2025 breach at SoundCloud, as well as how users can check if they are affected. In mid-December 2025, SoundCloud confirmed suffering a cyberattack and losing sensitive data on about 20% of its user base – approximately 28 million people.
The company did not share the exact number of affected users, but BleepingComputer picked up that Have I Been Pwned? (HIBP) Added 29.8 million accounts to its platform. HIBP is a database of email addresses stolen in different breaches, where people can see if their addresses were exposed.
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Source: TechRadar News
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