People get hacked every day for many reasons.
Some of reasons is try to customize when they don't have enough technical knowledge, and lack of carefulness. Personally, over-customization web browsers with curiosity might put people under high risks of hacks and attacks. It is especially right, and the risks are higher if they customize their browers by third-party add-ons. It is true not only for browsers, but also for other stuffs that connect to Internet. Consequently, I try to simplify my life on Internet, and always spend a little fund to secure my devices (with reliable antivirus/ internet security softwares).
Furthermore, devices used for daily stuffs should not be the place to store wallets, private keys, passwords, and backups. I keep all of them in one device, that is mostly off-line.