1303
Ironically , that was the same day that staff at Hāwera High School switched on their computers to discover the message demanding US$ 5000 ( NZ$ 7352 ) in bitcoin for the return of encrypted data on a server containing students ' work and teaching resources .
 ransom: demanding
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: phishing, data breach, ransom, discover vulnerability, patch vulnerability 
Text: {0} 
Answer:
 ransom: demanding