740
The campaign began Monday , according to cloud - based cybersecurity provider AppRiver , which counted more than 23 million related spam emails having been sent in less than 24 hours .
 24 hours: time; spam emails: tool; Monday: time
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: phishing 
  Option: victim, attacker, attack pattern, purpose, damage amount, tool, time, place, trusted entity 
Text: {0} 
Answer:
 24 hours: time; spam emails: tool; Monday: time