Rostelecom Data Breach History

This page tracks the Rostelecom data breach history and cybersecurity incidents affecting Rostelecom (Russia). BreachHistory currently indexes 2 publicly disclosed or catalogued incidents spanning 2022 through 2025, with approximately 867 thousand 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 Rostelecom 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 1 remain unverified claims pending independent verification.

Largest Rostelecom Data Breaches

The largest indexed incidents include the 2022 Rostelecom — 713K Smart Home records and the 2025 Rostelecom — 154K emails, contractor breach. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Rostelecom or a regulator. Below is the list of large data breaches:

• 2022 2022 Rostelecom — 713K Smart Home records — about 713.0K records exposed · Catalogued incident
• 2025 2025 Rostelecom — 154K emails, contractor breach — about 154.0K records exposed · Unverified claim

What Information Was Exposed?

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

Rostelecom Data Breach 2026

At the time of this update, no Rostelecom data breach has been catalogued for 2026. 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 Rostelecom 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 Rostelecom 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.