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Breach occurred 2025-11-15Verifiedcodestepbystep.com
What happened
In November 2025, the online coding practice tool CodeStepByStep suffered a data breach that exposed 17k records which were subsequently published online. The following month, a further corpus of data was released bringing the total to 103k. The impacted data included names, usernames and email addresses.
Data exposed
Frequently asked questions
The CodeStepByStep data breach occurred on November 15, 2025. It was added to Have I Been Pwned's breach catalog on November 23, 2025.
103,077 accounts were affected by the CodeStepByStep data breach, according to Have I Been Pwned's records.
The CodeStepByStep breach exposed the following data types: Email addresses, Names, Usernames.
Yes. Have I Been Pwned has verified the CodeStepByStep breach, meaning there's confirmed evidence the exposed data is genuine and tied to real accounts.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the CodeStepByStep breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
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