How could one stop people from hacking into personal documents via the internet? What makes a computer vulnerable?
Personal data can be kept relatively safe by following some basic rules that almost everyone using the Internet is aware of but which are not followed by most as it involves a little effort.
One of the most important rules is to keep your passwords secure. Do not create short passwords which are created with your personal information that can easily be obtained by anyone. With the widespread use of social networking it is extremely easy for anyone to find out a person's date of birth, the city where they were born in, pin codes, the school attended, in addition to other information that could be considered more private. A password should ideally be long, consisting of alphabets, numbers, special characters and should be random in nature though one that can be remembered.
A hacker today does not require direct access to a person's computer to obtain access to personal document with most people opting to use cloud computing and placing a lot of their personal data in these systems.
Another important step is to take care when accessing sites and to not download software unless the authenticity of the software manufacturer is certain. This is facilitated by the use of a good anti-virus software and an efficient firewall.