The FBI is warning US election and other state and local government officials about invoice-themed phishing emails that could be used to harvest officials’ login credentials. If successful, this activity may provide cyber actors with sustained, undetected access to a victim’s systems. As of October 2021, US election officials in at least nine states received invoice-themed phishing emails containing links to websites intended to steal login credentials. These emails shared similar attachment files, used compromised email addresses, and were sent close in time, suggesting a concerted effort to target US election officials.