1440
The remedy , Grobman said , is for the government and critical infrastructure providers to plan ahead , both by securing their systems and gaming out how they would respond to a ransomware attack .
 ( ransom: a ransomware attack,  their systems: time, they: 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: a ransomware attack,  their systems: time, they: victim) 