People search Telegram data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 2 Telegram-linked incidents, with headline counts up to 15M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Telegram breach history matters
Telegram operates in Technology. Across indexed rows, recurring themes include unverified actor or scraping claims. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2020 — — User data
Cataloged incident. Scraped. User data. Exposed categories include Names, emails, addresses, and other PII. No attested victim count is published for this row yet. See the telegram2020 and canonical BreachHistory entry.
2016 — — Telegram: Despite Telegram's claims of super security,…
Unverified claim — treat actor counts cautiously. Despite Telegram's claims of super security, they've been hacked by a group called Rocket Kitten. BreachHistory cites approximately 15M+ affected records in this row. See the telegramu and canonical BreachHistory entry.
Patterns and analysis
- Unverified actor or scraping claims — appears across multiple Telegram catalog entries; prioritize controls that address this class of failure.
- Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
- 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.
What to do if you may be affected
- Step 1: Enable phishing-resistant MFA on every account tied to this brand.
- Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
- Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
- Step 4: Review OAuth app permissions and revoke unused third-party integrations.
- Step 5: Bookmark the Telegram company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/telegram · Latest: telegram2020.
Sources: BreachHistory catalog (2 rows for Telegram), company and regulator disclosures cited in individual breach records.