In today’s world, securing the assets is necessary that can be done by password. But imagine if password is stolen or hacked then what about the security of assets? In this Paper, we have discussed the major attacks as well as password authentication / security methods and techniques. We have proposed a password security method, where arithmetic operations are performed on user selected pattern from time variables to generate secure password. The task of validating the password or authentication of user can be done on both client and server side. We have analysed how proposed scheme defends across brute force, dictionary, phishing, shoulder surfing, key logger, video recording and replay attacks. To the best of our knowledge, our pattern based time variable password method with arithmetic operation is the one which is able to defend against the all major attacks together.