Berlin (dpa) — Cybercriminals have been building up their toolbox for attacking individuals and businesses in recent months, and cybersecurity experts say there has been a fundamental change in the way that encryption malware is operating. Until now, most ransomware (malware designed to hold files hostage until the victim pays to get them back) encrypted the data on a victim’s computer or a company’s network and the cybercriminals then demanded payment to decrypt it. However, a new kind of Trojan is increasingly being spotted, one that first copies your files and then destroys them, IT securit…