EUCLEAK: How French Researchers Uncovered a Vulnerability in YubiKey Security Keys
A recent breakthrough by French cybersecurity researchers has exposed a side-channel vulnerability in YubiKey 5 Series security keys. This attack demonstrates that even the most secure hardware, which is designed to protect online accounts using two-factor authentication (2FA), can be compromised under the right conditions. Overview of the Side-Channel Attack YubiKeys, often praised for their robust security, rely on the Elliptic Curve Digital Signature Algorithm (ECDSA) for encryption. The Infineon SLE78 microcontroller, which powers these devices, was thought to be secure following its numerous certifications, including from the Common Criteria for Information Technology Security Evaluation....