Yea I saw that a couple hour ago. This raises questions as to whether other hardware wallets are as safe as their creators are claiming. If you ask anybody on the forum most will tell you that hardware wallets are the safest way to store your coins. I've seen dozens of similar threads about security and at least 90% of the answers were "buy a hardware wallet".
If they want to keep the company they should pay the 250k prize. Claiming the wallet is unhackable is fine, it's still in the early stage, but not paying the bounty will bury them.
Every hardware wallet have its own security measures. So far Ledger and Trezor has never been hacked or if there is an issue, they treat it very seriously and fix it no matter how slight the issue is. I believe it is still safe than having an online wallet.
Just stick to Ledger and Trezor, so far they have been proved as the most secure. I don't know how safe is technology that other harware wallets are based on.
Of course, there is no 100% safety guarantee but still so far there wasn't any security incident related to those wallets and I trust them the most. Everything else is risky and you have to accept that. Especialy avoid online wallets.