A three-day cybersecurity wargame began today in Tokyo in preparation for the upcoming Olympic Summer Games.

particular exercise has 140 workers from 58 critical infrastructure firms
defend against malware attacks that attempt to disrupt devices used for
telecommuting, according to the Nippon
agency. During the Olympics many workers will telecommute to avoid
traffic congestion.

The scenario
has a computer that was taken from an office environment where it was hit with malware
to a home being where the malware activates. The target computer is then injected
with a second type of malware that resides on the computer until it is returned
to the office at which time it activates and spreads to other systems enabling
the malicious actors to exfiltrate vital information.