CodeStepByStep Data Breach

▼ Key takeaways

•Reports suggest a potential breach involving CodeStepByStep.
•Discovered on November 1, 2025.
•Possible data exposed: User IDs, Full names, Email addresses, Usernames, Education details (school names and IDs).
•Confirmation level: Based on reports.

Detailed summary

CodeStepByStep, an online coding practice tool for computer science education, was reportedly compromised in November 2025. A dataset believed to contain user records from the platform was leaked on a cybercrime forum. The incident was disclosed on December 3, 2025, by Daily Dark Web.

Approximately 17,000 users may have been affected. The leaked information reportedly includes User IDs, full names, email addresses, usernames, and education details such as school names and IDs. Whether financial or medical data, or SSN, were involved has not been publicly confirmed.

Details surrounding data breaches can emerge over time, and official notices may be delayed.

Data possibly involved

User IDs
Full names
Email addresses
Increases risk of phishing attacks and account takeovers
Usernames
Education details (school names and IDs)

Breach Verification Status

Reports Only

Current

Initial dark web reports of potential breach

Company Confirmed

Company has acknowledged the breach

Regulator Confirmed

Confirmed by regulatory authorities

Note: Breach verification can take time. Information may evolve as more details become available from companies and regulators.

Case Status:

Monitoring

We're monitoring this situation for developments.

Were You Affected By This Breach?

If you are a customer or have received a data breach notification, you may submit your information as part of our ongoing investigation. Submitting your information is free and does not obligate you.

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Check Your Risk Level

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Do you use CodeStepByStep?

Yes

What should I do?

Change your passwords

Update passwords for the affected service and any accounts using the same password

Enable two-factor authentication

Add an extra layer of security to your accounts

Monitor your accounts

Watch for suspicious activity on your financial and online accounts

Watch for phishing attempts

Be cautious of emails or messages claiming to be from the affected company

Consider a credit freeze

Prevent unauthorized access to your credit report

Scan your email for other exposures

Check whether this address shows up in other known breaches. Free, no account.

Get your info off data-broker sites

Data Shield files removal requests with every broker that accepts an authorized agent, and gives you the exact link or letter for the brokers that only accept requests from you.

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