jm ²A³8§¨×FK(¥ãhÈ}U R)ð^JÌ%DÆ=L¬The private keys CAN be brute forced, in the future it will be economical to do so in some cases. Who would you rather give an insecure private key to, a miner or a crook?
https://whatsonchain.com/tx/1df109ba7cffd6bcb21e763c15e83de22fe6dbe78a6322217d9aa685536c19cf