1856
Hong Kong might just have experienced its biggest ever data breach after the personal details of the Special Administrative Region ( SAR ) ’s 3.7 million voters were stolen on two laptops .
 data breach: were stolen
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:
 data breach: were stolen