Corrective action taken by Verizon Communications to fix security issues with its FiOS and DSL routers resulted in the FTC closing its investigation to determine whether Verizon's distribution of the routers was an unfair or deceptive practice. According to the FTC, Verizon regularly shipped routers to consumers with the default security set to the outdated WEP standard, which has been known for a decade to have weaknesses that leave users of the routers vulnerable to hackers.