Authentication is the process that verifies the user's identity to control access to resources, prevent unauthorized users from gaining access to the system, and record user activities (to hold them accountable for their activities). It is used to authenticate users who log on to a server, ensure that software comes from a reputable source, and ensure that the person sending the message is who he says he is.

The growing scale of organizations and the more opportunities to push the boundaries have led to an upsurge in corporate fraud in recent years. Fraud can be a deceptive action taken against a company or one carried out by the company. A company could commit fraud in many ways to improve its industry reputation and defend itself from audits. On the other side, a company may become a victim of financial statement fraud, asset theft, and corruption committed by its staff members.

Most computer systems and applications use passwords as a common authentication method. The simplest way to implement authentication is to store a list of all valid passwords for each user. The downside of this method is that if the list is compromised, the attacker will know all the user passwords. A more common approach is to store the cryptographic hash value of the password phrase.

Have you ever received a text from someone you do not know? Did you become alarmed by the message? Did the message contain information about you and the people you know? Pretexting continues to become part of the global hacker's arsenal of tricks to manipulate their victims. This hack includes clicking on malicious links that can lead to identity threats, financial fraud, and extortion. Preventing pretexting starts security awareness training for users.

Doing business online has become simpler with the development of the Internet and mobile technologies. In general, both freelancers and clients benefit from the freelancing platforms. Freelancers have benefited from the freedom to choose their own hours and maintain creative control, the capacity to serve various clients. The clients can scale the work from project to project, develop round-the-clock contact, and hire freelancers at a reasonable price.