4
Qihoo 360 , a China - based internet security firm , says it has notified the EOS blockchain project about “ a series of epic vulnerabilities ” discovered on its platform .
 discover vulnerability: has notified
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: has notified