# Massive Data Breach Hits RingCentral: 1.6 Million Users Exposed

*Published August 17, 2026*
*Source: [https://www.securityweek.com/1-6-million-likely-impacted-by-ringcentral-data-breach/](https://www.securityweek.com/1-6-million-likely-impacted-by-ringcentral-data-breach/)*

## Executive Summary

A data breach at RingCentral has exposed the personal information of 1.6 million users, attributed to the ShinyHunters extortion group. Despite the breach, RingCentral's core services remain unaffected while only a subset of users have been directly impacted.

## Article

In a significant cybersecurity incident, RingCentral, a leading cloud-based provider of business communications solutions, has suffered a data breach affecting 1.6 million users. The breach, traced back to a sophisticated social engineering campaign carried out in July, was orchestrated by the notorious extortion group ShinyHunters. RingCentral quickly detected the unauthorized access and initiated remediation efforts with the help of a third-party forensic firm. The company stated that their core platform remains unaffected and services continue uninterrupted.

Although RingCentral did not publicly disclose the identity of the attackers, ShinyHunters took responsibility by adding RingCentral to its leak site, claiming to have exfiltrated over 623 gigabytes of data. When RingCentral refused to comply with the group's demands, ShinyHunters released a 280GB archive containing sensitive customer information including email addresses, names, addresses, and phone numbers.

The breach was highlighted by the data breach reporting site HaveIBeenPwned, which confirmed the inclusion of the compromised data in its database. RingCentral has assured that only a limited group of customers were impacted and that they have been directly informed. The company has yet to verify the complete extent of ShinyHunters' claims or the total number of affected individuals.

This incident underscores the persistent threat of social engineering attacks on businesses, emphasizing the importance of robust security measures to protect sensitive user information.