1631
In late January , a ransomware attack at an Austrian hotel affected the electronic door locking system at an Austrian hotel .
 ( ransom: a ransomware attack,  January: time, an Austrian hotel: victim, the electronic door locking system: victim, an Austrian hotel: 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,  January: time, an Austrian hotel: victim, the electronic door locking system: victim, an Austrian hotel: victim) 