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DPC fine: Twitter, breach notification data breach case

Irish Data Protection Commission · decided Dec 15, 2020 · Decided

Investigation, begun in January 2019, found Twitter notified a breach late and failed to document it adequately.

The case

Regulator
Irish Data Protection Commission
Decided
Dec 15, 2020
Status
Decided
Outcome
The DPC fined Twitter EUR 450,000, its first GDPR fine in a cross-border case against a big tech company.
Amount
EUR 450,000

History

1 dated entry
DateEntry
Dec 15, 2020Decision: DPC fine: Twitter, breach notification
WhenCase
Dec 11, 2025Filed 9mo agofiledICO fine: LastPass, 2022 breachDecidedData breachUK Information Commissioner's OfficeGBP 1.2 million
Aug 25, 2025Filed 13mo agofiledX Corp. and xAI v. Apple and OpenAIActiveAntitrustN.D. Tex.
Aug 13, 2025Filed 13mo agofiledIn re Coinbase Customer Data Security Breach LitigationActiveData breachS.D. N.Y.
Jun 17, 2025Filed 15mo agofiledICO fine: 23andMe, genetic data breachDecidedData breachUK Information Commissioner's OfficeGBP 2.31 million
Apr 8, 2025Filed 18mo agofiledIn re PowerSchool Customer Data Security Breach LitigationActiveData breachS.D. Cal.
Jan 15, 2025Filed 20mo agofiledFTC: GoDaddy, hosting securitySettledData breachUS Federal Trade Commission
Dec 17, 2024Filed 21mo agofiledDPC fine: Meta, 2018 Facebook breachDecidedData breachIrish DPCEUR 251 million
Oct 9, 2024Filed 24mo agofiledFTC: Marriott and Starwood, data breachesSettledData breachUS Federal Trade Commission
Caption and links

Twitter International Company

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