I dont know about any hacker strikes taking place recently. And the japan issue was old. So i think there is not much threat
Nope, everything related to the internet can be hacked, and this is one of the weaknesses of crypto. So users should be more vigilant and careful in managing it. But there are ways to reduce or avoid this risk of hacking. Like using a wallet that has a good quality of protection or use more than one wallet. Hackers are everywhere, but they have limits, hackers may be everywhere but there are lots of things you can do to avoid being a victim of hacking