CodeStepByStep Data Breach Data Breach
| Company | CodeStepByStep |
|---|---|
| Breach Date | November 15, 2025 |
| Disclosure Date | November 23, 2025 |
| Records Affected | 103K |
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.
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.
What Data Was Exposed
- Email addresses
- Names
- Usernames
Who Is Affected
Anyone who had an account with CodeStepByStep before November 2025 may be affected. The breach exposed 103K records.
How to Check If You Were Affected
Visit haveibeenpwned.com and enter your email address to check if you were included in this breach.
What You Should Do Now
- Watch for phishing emails. Scammers may use your leaked email to send targeted phishing attempts. Be extra cautious of unexpected emails.
- Enable two-factor authentication. Add 2FA to your accounts wherever possible for extra security.
- Consider identity monitoring. A monitoring service can alert you to suspicious activity.
Last updated: January 13, 2026