1 October 2020 by Phillip Johnston • Last updated 5 June 2025Mirai is malware that targeted networked IoT devices running Linux. Many companies ship devices with default usernames and passwords enabled. Mirai takes advantage of this fact by continuously scanning for vulnerable devices and using an expansive list of factory default logins. If successful, the victim’s IP and login credentials was sent back to a collection server. Devices remain infected until they are rebooted, but they are quickly re-infected if the login is unchanged. In 2016, the Mirai botnet was discovered after it was used in some of the largest DDoS attacks. You were probably impacted by …
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