TikTok Data Breach History

This page tracks the TikTok data breach history and cybersecurity incidents affecting TikTok (China). BreachHistory currently indexes 10 publicly disclosed or catalogued incidents spanning 2019 through 2026, with approximately 4.5 billion records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.

The TikTok breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed, while 3 remain unverified claims pending independent verification.

Largest TikTok Data Breaches

The largest indexed incidents include the 2026 TikTok — 2.4B forum leak claim (unverified); infostealer repackaging suspected, the 2022 TikTok — 2B users affected, and the 2020 Class action — improper data collection on 89M users (incl. children), along with additional historical incidents involving exposed passwords, public databases, and large-scale data scraping. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by TikTok or a regulator. Below is the list of large data breaches:

• 2026 2026 TikTok — 2.4B forum leak claim (unverified); infostealer repackaging suspected — about 2.4B records exposed · Unverified claim
• 2022 2022 TikTok — 2B users affected — about 2.0B records exposed · Catalogued incident
• 2020 Class action — improper data collection on 89M users (incl. children) — about 89.0M records exposed · Unverified claim
• 2020 2020 — TikTok: Poor security / misconfiguration, 42,000,000 records — about 42.0M records exposed · Catalogued incident

What Information Was Exposed?

Depending on the incident, exposed data may include email addresses, phone numbers, names, physical addresses, health and medical (PHI) records, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.

TikTok Data Breach 2026

At the time of this update, BreachHistory catalogues 1 2026 incident related to TikTok. Most recent entry: 2026 TikTok — 2.4B forum leak claim (unverified); infostealer repackaging suspected. New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.

What To Do If You Were Affected

If you believe your account may have been involved in a TikTok data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.

This TikTok breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.