‘Payment sent’: Travel giant CWT pays $4.5 million ransom to cyber criminals


The attackers used a strain of ransomware called Ragnar Locker, which encrypts computer files and renders them unusable until the victim pays for access to be restored. ? Reuters LONDON: US travel management company CWT paid $4.5 million this week to hackers ? who plundered reams of sensitive corporate files, and said they had knocked 30,000 computers offline, according to a record of the ransom negotiations witnessed by Reuters.