Billions of smartphones, tablets, laptops, and IoT devices are using Bluetooth software stacks that are vulnerable to a new security flaw disclosed over the summer.

Named BLESA (Bluetooth Low Energy Spoofing Attack), the vulnerability impacts devices running the Bluetooth Low Energy (BLE) protocol.

BLE is a slimmer version of the original Bluetooth (Classic) standard but designed to conserve battery power while keeping Bluetooth connections alive as long as possible.

Due to its battery-saving features, BLE has been massively adopted over the past decade, becoming a near-ubiquitous technology across almost all battery-powered devices.

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