DocuSign's Envelopes API abused to send realistic fake invoices

https://www.bleepingcomputer.com/news/security/docusigns-envelopes-api-abused-to-send-realistic-fake-invoices/

https://twitter.com/home/status/1853532427748012499

https://twitter.com/home/status/1853540265346396316

https://twitter.com/home/status/1853572416154574926