This article is about computer and internet security, we must secure it to avoid unwanted access and usage.
We must secure our system and protect our personal things from others access. If our system is lack in security without an anti virus software, virus and malwares will attack it easily and we will suffer with slow downloading and lost some data due to the virus. In the same way we must protect our system and personal files with a password to avoid unwanted access of other persons.
Most of the time we will use our system or laptop, some times we are in need to share our system or laptop with others, due to some situation. If some of our friend or relative are in need to access our system, and ask permission from us, it is hard to refuse it and we are in need to give permission to them.
If we don't protect our important files with a password they may see our files and check our personal data. Most of the persons are not interested in checking other persons information, but some persons may do it for having fun and enjoyment. If our friends checked some of our personal things and access our personal files, we will face some unwanted troubles due to it.
While working in a network system, surely we must have password to our personal files, since other persons in our network have the ability to check our files, if we don't protect it with a password, if our work is a group based option and we can share our password with other persons whoever involved in our group. If it is based on our personal work, don't share your password with any one and protect your file with a powerful password to avoid unwanted access.
Some persons will share their password with their best friends, but this kind of activity is wrong. We must be careful with the system security and always give more importance to the security of our data. We must secure our internet too to avoid unwanted access, otherwise some person may use our internet and we are in need to pay the bill to the service provider for their access. Security and safety is very important in computer and internet.