How to keep passwords safe from the hackers?
1.You need different passwords for different site/accounts
Keep different passwords for different sites, i.e your facebook and gmail's password should not be the same. If you keep same passwords and incase your one account is hacked, all your other accounts will be easily accessed.
2.Longer passwords are harder to crack
Though it is not the best way to safeguard your password, but it can help if brute-force attack is used to crack the password. So, the longer the password, better it is.
3.You shouldn’t use a word from the dictionary
to avoid dictionary attack. Don't use words that can be easily searched in a dictionary.
4.Humans tend to choose passwords with personal meanings
Avoid this, as it is easy to guess password which contain your or your girlfriend's name, number, address, date of birth. Such passwords are so easy to crackthat even the boy next door can get your password just by guessing.
5.Passwords need to be changed regularly
It is a good practice to keep changing the passwords frequently at an interval of couple of months. By changing passwords regularly you can avoid major trouble.
6.There are guidelines for creating strong ones
Most Internet security experts recommend having a password that contain at least 8 characters mixed with capitalized and lower-case letters, numbers, and symbols. A common technique is to put three unrelated words together and make up a short story that involves all three so you can remember it. You can also use the first letter of each word in your favorite line of a song or movie. Change out a couple letters for numbers or special characters, and your password should be too much trouble for a hacker to figure out. and this depends on you how well you mix up words that you can remember. Like replacing s with $ , o with 0, i with ! etc. eg, if your name is john doe your password can be j0hN'sLasTN@me!sD03. Be creative.
So enjoy the internet and be safe.