1582
According to cyber-security firms F5 , attacks started as soon as Cisco Talos researchers revealed the zero - day 's presence and several proof - of - concept exploits were published online .
 discover vulnerability: were published online
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:
 discover vulnerability: were published online