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San Francisco - based DocuSign warned on May 9 that it was tracking a malicious email campaign where the subject line reads , “ Completed : docusign.com – Wire Transfer Instructions for recipient - name Document Ready for Signature . ”
 ( phishing: was tracking,  malicious email campaign: attack pattern, May 9: time, DocuSign: trusted entity) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( phishing: was tracking,  malicious email campaign: attack pattern, May 9: time, DocuSign: trusted entity) 