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Yet , following a surge in ransomware attacks — in which hackers seize and lock an organization ’s data and networks and only unlock them for a hefty fee — cyber watchers are beginning to fear this plot could become reality .
 ransom: ransomware attacks
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:
 ransom: ransomware attacks