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The Pennsylvania Senate Democrats have been hit by a ransomware attack that has locked senators and employees out of their computer network since the early morning hours of Friday , state officials told NBC News .
 ( ransom: have been hit,  The Pennsylvania Senate Democrats: 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:
 ( ransom: have been hit,  The Pennsylvania Senate Democrats: victim) 