There are many ways to hack digital wallets:
There are, but it also depends on the type of wallet.
- Phishing Emails
Don't get phished. There is no reason to be curious and click on every link you see. Don't click on unknown links from random people you don't trust or you aren't expecting will PM you.
- Malware and Viruses
They can cause no harm to hardware wallets (except a clipboard hijacker that can change the destination address, but if you pay attention to the address displayed on your devices' screen, you will notice it), papers wallets, and airgapped devices.
- Browser Extensions and Plug-ins
This is similar to phishing links. In most cases, there is no reason to use the majority of them. If you absolutely have to, ensure you are downloading the real thing.