How was Ledger hacked?

I'm curious to understand how Ledger, a popular cryptocurrency hardware wallet, was hacked. As a hardware wallet designed to securely store digital assets, it's surprising to hear that it was compromised. Can you elaborate on the specifics of the attack? Was it a vulnerability in the wallet's software, a physical breach, or perhaps a phishing scam? I'm eager to learn more about the security measures that were bypassed and what steps users can take to protect their funds in the future.