Cybersecurity ratings company BitSight recently published a report that found that organizational home office networks are far more likely to be infected with malware than corporate networks.
The report, entitled "Identifying Unique Risks of Work From Home Remote Office Networks," stated that 45 percent of organizations had malware on their corporate-associated home networks. By comparison, only 13.3 percent of organizations had malware on their corporate networks.
During the month of March 2020, home office networks were 3.5 times more likely to be infected with malware than a corporate network, according to the report. For instance, TrickBot malware, often used in ransomware campaigns, was 3.75 times more common on home office networks, while Mirai, a well-known botnet, was at least 20 times more common.
The author of the report said, "Worms like Mirai impact home networks more than corporate networks because of all the different IoT devices and consumer devices that Mirai was built to take advantage of and exploit." It also exploits defaults, and many users do not change their defaults.
BitSight looked at more than 41,000 organizations and their "work from home-remote office networks" for the report. Arielle Waldman "Malware found on 45 percent of home office networks" searchsecurity.techtarget.com (Apr. 15, 2020).