But many experts are afraid the beginning of the new work week will bring more attacks and reveal ones that already existed that went unnoticed. Many workers in Asia had already finished their business for the day on Friday. It’s possible that people could be heading into the office to find a nasty surprise. And despite the best efforts of a young security researcher in the UK who goes by MalwareTech, the temporarily halted ransomware has simply been altered and is being spread by copycats. “We are in the second wave,” Matthieu Suiche of Comae Technologies, tells the New York Times. “As expected, the attackers have released new variants of the malware. We can surely expect more.”