CO
CodeStepByStep
MediumCodeStepByStep suffered a data breach in 2025, exposing over 103,000 records containing names, usernames, and emails.
103,077 recordsBreach Nov 15, 2025Updated Dec 2, 2025
Exposed data classes
Fields reported as compromised in this breach record.
Email addressesNamesUsernames
Detailed Analysis
In-depth analysis of the breach and its implications.
In November 2025, CodeStepByStep, a platform for coding practice, experienced a data breach that initially exposed 17,000 records, which were subsequently published online. An additional dataset was released in December 2025, increasing the total number of impacted records to 103,077. Exposed data included names, usernames, and email addresses.
Impact Analysis
Understanding the scope and consequences of this breach.
- User Impact
- Users faced risks of phishing attacks, account compromise, and spam due to leaked email addresses.
- Business Impact
- CodeStepByStep incurred reputational damage and potential regulatory queries related to data protection.
- Affected Sectors
- Education Technology
- Online Tools
- Geographic Impact
- Global
What You Should Do
Recommended actions to take in response to this breach.
If You Were Affected
- •Review account activity for suspicious actions.
- •Change passwords for the platform and other accounts where the same credentials were used.
- •Monitor emails for phishing attempts.
- •Consider enabling multi-factor authentication on related accounts.
Preventive Measures
- •Use strong, unique passwords for each account.
- •Regularly update and secure personal information on online platforms.
- •Enable two-factor authentication wherever possible.
- •Limit sharing of sensitive details with online services.
Frequently Asked Questions
Common questions about this breach and what it means for you.
Check your email address on websites like HaveIBeenPwned to see if it appears in this breach's database.