For the record, they've replaced defective vulnerable keys before. https://www.yubico.com/support/security-advisories/ysa-2017-01/ https://www.yubico.com/suppo

For the record, they've replaced defective vulnerable keys before. https://www.yubico.com/support/security-advisories/ysa-2017-01/ https://www.yubico.com/support/security-advisories/ysa-2017-... I had one of the affected keys. I requested a replacement via their key replacement program and got a new one in the mail.