Data breach
CodeStepByStep: a data breach
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.
The record
- Organisation
- CodeStepByStep →
- Identity
- CodeStepByStepidentified by its domain in a verified breach record
- Records affected
- 103,077 records
- Data exposed
- Email addresses, Names, Usernames
- Sector
- Not recorded
- Occurred
- 2025-11-15
- Disclosed
- 2025-11-23
- First recorded here
- 2026-09-09
Fastnexa security experts
Worried the same could happen to your company?
If you are a customer or supplier of CodeStepByStep, or work in the same industry, a Fastnexa security expert can tell you what this means for your data and test whether the same attack would work on you.
Think you’ve already been hit? Don’t wait on a form: call or WhatsApp +1 (732) 454 2616. We reply within 1 hour, 24/7. Emergency help →
Sources (1)
One source so far.
- Have I Been Pwned ↗First reported
2025-11-23