Security News > 2020 > November > Hundreds of Tesla Powerwall Gateways Potentially Exposed to Hacker Attacks
Hundreds of Tesla Powerwall Backup Gateways may have been exposed to remote hacker attacks from the internet, but Tesla says it has taken steps to reduce risks.
Tesla Powerwall is an energy storage product for homes that uses a battery to store power from solar panels or the grid, ensuring that users continue to have power even during an outage.
The Backup Gateway component of the product is designed to provide energy management and monitoring and it's responsible for controlling the connection to the power grid, detecting outages, and switching to backup power.
The company explained that exposed devices are easy to find on the web due to the fact that the Backup Gateway exposes a web server on HTTPS port 443.
Specifically, the password for the first login is the last five characters of the Gateway serial number, which can be obtained from various sources, including a label on the device, the mobile app, and partially from the name of the Wi-Fi access point broadcasted by the gateway.
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