WorkOS reports security breach
It's not on their website or Trust center yet, but we received the following breach notification from WorkOS: We are writing to notify you of a data security incident that we detected on October 30, 2026 and are continuing to investigate. We value your trust and want to keep you informed while our investigation continues. What Happened On October 30, 2026, at 16:39 UTC, WorkOS detected anomalous traffic to an internal business system. Our investigation identified evidence the attack was likely driven by ARTEX, an AI-assisted, autonomous penetration testing framework, from IP addresses based in Hong Kong and China. The unauthorized actor gained access to an internal API used by our sales and marketing tools. Through this service, it was able to access data from our Salesforce and Snowflake instances. These systems hold business contact information, account and commercial information, aggregated and de-identified product usage metrics, marketing contacts, and support tickets. This includes CRM information such as names, email addresses, phone numbers, company mailing addresses, and other business information for WorkOS customers. We have no evidence that your application data was accessed. We also have no evidence that any production WorkOS services were accessed or impacted. Our current analysis indicates this incident was localized to only CRM and customer support data. ...
Discussion Highlights (2 comments)
majorchord
> We have no evidence that your application data was accessed. Translation: We don't know how we were hacked and can't tell what anyone did or didn't look at. In that case I would treat it as full compromise and urge everyone who might be potentially affected to change password, rotate keys, whatever you need to do to protect yourself.
grinich
Hi everyone - WorkOS CEO here. WorkOS's production systems are secure. No customer platform data was accessed. This incident was isolated to internal GTM systems. The attack involved ARTEX, an autonomous AI agent framework used to carry out offensive security operations. It's a striking example of how quickly the capabilities of attackers are evolving. We've contained the incident, brought in independent experts to investigate, and are working through the details. Security is something we take extremely seriously, and I believe in being transparent when things go wrong. We'll continue to share updates as we learn more. Here’s the full post: https://workos.com/security/bulletins/october-30th-2026-data... If you are a customer and would like to have a call with our security team, please send a note to security@workos.com