The breach dates from 2016 and may have affected thousands of Zendesk corporate clients and the clients’ customer accounts. Zendesk state that only accounts created prior to 1 November 2016 were affected.
The customer service software company has found that 10,000 support and chat accounts were accessed by an unauthorised third party. Information accessed included emails, names and phone numbers.
In a recent statement, the company has given more information about the breach and provided advice for their clients. They have also taken the step of emailing the affected clients directly.
Breaches of this kind can lead to an increased risk of phishing against affected email accounts. Users should be aware of this fact.