I was working in one of joint venture company between Us company and a Saudi company. The genral manager Green card holder and the finance manager Ame

You have not given enough facts in your question to be able to give a definitive answer. I assume you are an employee of the US company and that this is an employment issue (since you said you were "fired"). Whoever has greed cards or passports is irrelevant. If the computer is not your computer, in other words if it is a company computer, the employer may have a right to "break" your password or otherwise access what is stored in your computer. Most companies have policies that make it explicit that employees have no right to privacy in company owned equipment, like computers. Check your personnel manual or employee handbook, if there is one. I would be surprised if you have a claim against the employer for hacking into a company owned computer, but different facts might make a difference in the opinion. This answer is not intended to create an attorney/client relationship and is not intended as legal advice. It is simply a general statement of legal principles. You should retain local counsel to review your specific situation in more detail and obtain an informed legal opinion.