Hardware security keys are among the most robust account security tools of today. However, researchers have found how to clone these hardware security keys, thus risking the account security. Nonetheless, the overall attack has numerous limitations which still make using U2F security keys a better choice.
Clone Hardware Security Keys
Researchers from NinjaLab have found a way to clone hardware security keys threatening U2F security. As disclosed via their post, a side-channel attack can possibly allow an adversary to target the secure element in U2F-based hardware security keys and extract the encryption key.