Legal

Privacy Policy

Effective date: 27 May 2026  ·  Last updated: 27 May 2026

1. Who We Are

Poseidon is an intelligent grading and assessment platform for educational institutions. We are built and operated by Emzini weCode (hereinafter "Poseidon", "we", "us", or "our"). For any privacy-related queries, contact us at privacy@emziniwecode.com.

2. Information We Collect

Account information

When you register or are invited to Poseidon, we collect your name, email address, institution affiliation, and role (student, teaching assistant, instructor, or administrator). Passwords are stored as one-way cryptographic hashes — we cannot retrieve them.

Submission content

When students submit assignments, we store the submitted files — code, PDFs, essays, documents, or any other format permitted by the assignment. This content is associated with the submitting student's account and the relevant course.

Grades and feedback

We store grades, rubric scores, inline annotations, comments, and regrade request history generated through the grading process.

Usage data

We collect standard technical data: pages visited, features used, browser type, device type, and timestamps. This is used to understand how the platform is used and to improve it.

Cookies

Poseidon uses essential cookies to maintain authentication sessions. We do not use advertising or third-party tracking cookies. You may disable cookies in your browser, but doing so will prevent you from signing in.

3. How We Use Your Information

• Providing the service: storing and displaying submissions, grades, and feedback to authorised users within your institution.
• Communications: sending grade notifications, password reset emails, and essential platform alerts.
• Platform improvement: analysing usage patterns, grading data, and assessment outcomes to improve the platform's features and intelligence. This may include aggregated or de-identified analysis of submission content and grade distributions.
• Security and compliance: detecting abuse, fraud, or misuse of the platform.

4. Data Analysis and Research

As part of our mission to build intelligent assessment tools, we may analyse grading data, assessment outcomes, and submission patterns to improve the platform's AI and analytics features. This analysis is conducted by Poseidon staff and may include:

• Aggregated grade distributions and cohort performance metrics
• Rubric item quality and discrimination analysis
• Patterns in student submissions to improve autograding accuracy

Where possible, this analysis is conducted on de-identified or aggregated data. Individual student work is not shared publicly or sold to third parties under any circumstances.

5. Who We Share Data With

We do not sell your personal data. Within Poseidon, data is shared only as necessary for the platform to function:

• Instructors and TAs can see submissions, grades, and feedback for their courses.
• Students can see their own submissions, grades, and class-level statistics.
• Administrators can see course and user data for their institution.

We may engage trusted service providers (hosting, email delivery) who process data on our behalf under strict confidentiality obligations. We do not share personal data with any third party for their own marketing or commercial purposes.

6. Data Retention

We retain your data for as long as your institution's account is active. Upon account closure or subscription expiry, data is retained for a further 12 months to allow for recovery or dispute resolution, after which it is permanently deleted. You may request earlier deletion at any time (see Your Rights below).

7. Security

We implement industry-standard security measures including encrypted data transmission (HTTPS/TLS), hashed password storage, and access controls that restrict data visibility to authorised users only. No system is perfectly secure; we will notify affected users promptly in the event of a data breach that poses significant risk.

8. Your Rights

Depending on your location, you may have the right to:

• Access: request a copy of the personal data we hold about you.
• Correction: request correction of inaccurate information.
• Deletion: request deletion of your account and associated data (subject to institutional retention obligations).
• Objection: object to certain processing activities, including analytics.
• Portability: request your data in a machine-readable format.

To exercise any of these rights, contact us at privacy@emziniwecode.com. We will respond within 30 days.

9. Children's Privacy

Poseidon is designed for use in formal educational settings. Students under 13 must only use the platform through their institution, which is responsible for obtaining appropriate parental or guardian consent where required by applicable law.

10. Changes to This Policy

We may update this policy from time to time. We will notify registered users of material changes by email at least 14 days before they take effect. Continued use of Poseidon after the effective date constitutes acceptance of the updated policy.

11. Contact

For privacy questions, data requests, or concerns, contact:
Emzini weCode — Poseidon Privacy
privacy@emziniwecode.com
Bulawayo, Zimbabwe