what is social engineering and why you need anti virus

 social engineering:

social engineering is the act of manipulating people into performing actions or divulging confidential information. It is different from a conventional form of cheating in that the perpetrator uses deception rather than feigned identities and physical intrusion, although in some cases the two are combined.

Hackers who breach computer security systems to maintain unauthorized access while stealing information are sometimes referred to as social engineers, which may be technically accurate but can lead to confusion with social engineers who use deception for illicit gain (e.g., hackers).

Some consider it a subset of ethical hacking. It is also distinct from phishing, in which an attacker targets a victim with a plausible-looking email or website to trick the victim into disclosing sensitive information; the maliciousness lies in the delivery mechanism and not the content of the message.

Social engineering is often used by intelligence agencies to obtain information or gain access. The first documented use of social engineering was before World War I by British Foreign Office personnel in China to obtain information from officials. Hackers and cybercriminals also use various types of social engineering attacks to gain access or steal data.

Social engineers try to collect information by using personal relationships ("friendships," "relationships," "relationship building") or other social connections ("eavesdropping").

the reason why you need antivirus:

There's no better way to feel safe than to be safe. That's the thinking behind having an antivirus on your computer or smartphone, and in this article we'll cover the best reasons for you to start using one today.

One of the most important things that an antivirus provides its user is peace of mind. You may be aware that most viruses come from outside sources like email spam, file sharing sites, infected downloads, etc., but it can also happen from within your own system by a rogue app.