2610
After the ransacking of MongoDB , ElasticSearch , Hadoop , CouchDB , and Cassandra servers , attackers are now hijacking hundreds of MySQL databases , deleting their content , and leaving a ransom note behind asking for a 0.2 Bitcoin ( $ 235 ) payment .
 ( data breach: the ransacking,  MongoDB: victim, ElasticSearch: victim, Hadoop: victim, CouchDB: victim, Cassandra servers: 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: the ransacking,  MongoDB: victim, ElasticSearch: victim, Hadoop: victim, CouchDB: victim, Cassandra servers: victim) 