Fine · Ireland
Twitter International Company: USD 500,000
- Authority
- Data Protection Commission (Ireland)
- Country
- Ireland
- Date
- Decision of 9 December 2020
- Amount
- USD 500,000, as imposed (not converted)
- Appeal status
- Unknown (source)
- Provisions cited
- Article 33(1), Article 33(5)
What the fine was for (summary, not the official text)
Notified a personal data breach late and did not document it properly (a bug that exposed protected tweets).
Checked against the official source on 28 October 2026.
Only the authority's decision is authoritative. This is reference material, not legal advice.