Share Millions of Brits could be at risk of cyberattacks due to poor default passwords and a lack of firmware updates Millions of Brits use Wi-Fi routers that contain various security flaws and may put them at risk of cyberattacks, an investigation by British consumer watchdog Which? has found. Together with Red Maple Technologies, Which? looked at 13 commonly used older router models offered by various British internet service providers (ISPs) and found that over half of them didn’t meet the security standards of today. The main issues affecting routers suplied by ISPs such as Virgin, EE, Sky, TalkTalk, and Vodafone were weak default passwords, local network vulnerabilities, and the lack of firmware updates to patch security loopholes.