2479
According to Wednesday 's filing , Yahoo still has n’t learned how this data was stolen , although it appears to be separate from the 2014 breach .
 ( data breach: was stolen,  this data: compromised data, Yahoo: victim) 
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:
 ( data breach: was stolen,  this data: compromised data, Yahoo: victim) 