NEW: Google and the FBI say they have seen a ransomware gang send people pretending to be IT support to victims' offices, where they use USB drives to steal data.
The hackers mix this tactic with traditional email and voice phishing to pilfer information and then threaten and extort victims.
Cybercriminals, part of a gang known as Silent Ransom Group, have sent people pretending to be IT support employees to law firms' offices, where the criminals have stolen data using USB drives or remo...
