The DocuSign Trust Center is the best source of information regarding alerts or threats to the DocuSign environment. 

Always leverage official DocuSign channels to ensure information you receive regarding alerts or threats is accurate. For example, we have been alerted that certain companies are using the DocuSign name (coupled with inaccurate information on security threats) to enhance sales of their security products and services. Stay proactively informed on alerts and threats by subscribing to our DocuSign Support Twitter feed #AskDocuSign or find the latest accurate information by visiting us here at https://docusign.com/trust.