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The Shadow Brokers first emerged on social media in August by similarly dumping operational code for a cohort of old firewall exploits that targeted vulnerabilities in Cisco , Fortinet and Juniper Networks products .
 discover vulnerability: first emerged
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: first emerged