1898
According to the law enforcement agency , attackers have targeted the FTP servers of medical and dental facilities in an effort to obtain access to protected health information ( PHI ) and personally identifiable information ( PII ) , and use it to intimidate , blackmail and harass business owners .
 ( data breach: obtain access,  personally identifiable information ( PII ): compromised data, protected health information ( PHI ): compromised data, medical and dental facilities: victim, attackers: attacker, the FTP servers: victim, intimidate: purpose, blackmail: purpose, harass: purpose) 
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: obtain access,  personally identifiable information ( PII ): compromised data, protected health information ( PHI ): compromised data, medical and dental facilities: victim, attackers: attacker, the FTP servers: victim, intimidate: purpose, blackmail: purpose, harass: purpose) 