HackerOne and Pantheon were also impacted by the Salesloft breach

Salesforce-Connected Third-Party Drift Application Incident Response Update
HackerOne confirms limited data exposure from the Salesforce/Drift breach. No customer vulnerability data impacted. Investigation ongoing.
HackerOne (www.hackerone.com)

Salesloft Drift Security Incident: Pantheon Response
Pantheon Operations's Status Page - Salesloft Drift Security Incident: Pantheon Response.

(status.pantheon.io)