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The researchers at Palo Alto firm stated “ Through this campaign , there is little doubt that the attackers have been able to gain a great deal of information from their targets , ” The campaign also illustrates that for some targets old tricks remain sufficient to run a successful espionage campaign , including the use of URL shortening services , classic phishing techniques as well as using archive files to bypass some simple file checks .
 ( data breach: have been able to gain,  the attackers: attacker, information: compromised data, their targets: 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: have been able to gain,  the attackers: attacker, information: compromised data, their targets: victim) 