Computer hacking forces indian citizens to use paper notebooks for important data

In the last few years, hacking of computers has increased greatly.
sometimes, computer users cannot access any file on their computer because of hacking, they cannot also do anything to end the hacking other than shut down the computer
So for important financial data, it is advisable to keep it offline, so that it is easily acessed whenever required
The hackers will not enter the house, to steal the paper notebooks, they can easily hack computers and laptops without being identified