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Be wary of the 7 most common types of spam

Email, as we know it, has always been the most susceptible to spam on the internet today. Anyone who has ever used email is no stranger to having to spend time “dealing with” spam almost regularly. The types of email spam (email spam) not only make us uncomfortable every time we check the inbox, but can also present risks of phishing or, worse, system security. However, if you know how to identify and classify these spam emails, you will limit the risk of falling victim to online scams or spreading malicious code.

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Spam is not only a nuisance, but it also involves many other complex activities on the internet space. According to statistics of security researchers, an estimated 560 billion spam emails are sent every day on e-mail platforms, accounting for 91% of all communication emails sent and received daily. world. Although only a small percentage of spam recipients become victims of fraud, but according to research by the US Federal Bureau of Investigation, the world loses nearly 500 million dollars a year through spam activity is based on spam. This equates to about 26,000 spam phishing complaints per month, which means one complaint is sent every 100 seconds.

To protect yourself against spam phishing, the prerequisite is to have some basic information about the appearance and characteristics of spam types. Of course, modern anti-virus programs or email filters can also help you effectively deal with spam, but educate yourself about different types of spam, such as email phishing. Email, spoofing emails, Nigerian scams, or pornography are the first step towards protecting yourself. Also, understanding when to decline a “great” (and possibly a scam) offer, or check if the message belongs to a real business or just a scam. Infection of your system can also be very helpful, especially if you’re dealing with email a lot.

Treating spam is not easy

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As a rule, when receiving a suspicious email, you must first carefully consider the content as well as the offer in which there are any unusual elements. Then check the authenticity of any URLs or attachments in the mail before deciding to disclose any personal information, passwords or money. By applying the following tips, you will completely master the ability to identify different types of spam, and protect yourself against any malicious behavior via email. Remember, protect yourself with knowledge before resorting to any security tool, a crook will not have a chance to deceive a wise and sane person.

7 common types of spam

  • Unsolicited advertising letter
  • Phishing email
  • Email Trojan
  • E-mail chain
  • Email spoofing (email Spoofing)
  • Fraud infects viruses
  • Spam about pornography

Unsolicited advertising letter

Unwanted advertising messages

Unsolicited promotional emails are the most common type when it comes to spam, which can be quite annoying because they are in the spam folder, but they are often very large. There are hundreds of billions of unsolicited promotional messages sent every day, mostly information about miracle weight loss drugs, male enhancement products, travel programs, promotions, or Research program, online course. In general, advertising spam is sent innocently and the recipient is a very long list of people or groups of people, and the quality of this spam is often quite low. Sometimes, it lures the fussy person, trying to read their credit card numbers and personal information.

This type of spam is often spam repeated dozens of times for an individual mailbox, why is that? One reason lies in the fact that advertisers want to use psychological effects. When a product image keeps eyeing the reader, when it comes time to buy something with a similar function (or the same kind), the brand image of that spam will first appear in that person’s mind. . Another reason is to stimulate the curiosity of email users who want to read a promotional message to see if the content is beneficial for them or not.

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Phishing email

Phishing email

Phishing emails are the second most popular spam type on e-mail platforms, and also one of the most difficult to detect spam. Phishing emails are often designed to simulate the prototype of real emails, sent from reputable organizations and businesses (such as Amazon, Google, Microsoft, or Facebook …) to trick users into clicking. go to the link or download the attachment. This link will redirect the victim to a phishing site (also designed to look real). Here, the victim will continue to be tricked into entering their account information, passwords, as well as personal information. This data is then used by cybercriminals to infiltrate and hijack victims’ real accounts. In the case of phishing emails attaching malicious files, if the user downloads this file, their system will be infected with malicious code that steals information.

In general, phishing emails are a very large and complex category. If you want to learn more about phishing emails, please continue to refer to our article “How to identify phishing emails”.

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Email Trojan

Email Trojan

First you have to know what a Trojan is. Trojan horses, also known as Trojan horses, are a type of malware or malware that, if at first glance, legitimate, but in fact they can completely take control of the victim’s computer. The goal of creating a Trojan is to damage, sabotage, steal information, or generally speaking, to perform harmful actions on the targeted data or networks.

Trojans have been associated with email for a long time and are still extremely effective. More dangerously, the Trojan not only infects the victim’s computer, but also has the ability to automatically send email spreading malicious code to anyone on the victim’s contact list. The most famous email-spreading Trojan is known as ‘2000 ILOVEYOU’, which has affected millions of people around the world. It hits each individual’s curiosity, when the user opens and downloads the malicious file, this attached script will damage the local computer system and continue to send malicious emails to all of them. people on the new victim’s known list. Just like that, the malware spread exponentially, causing huge damage.

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E-mail chain

E-mail chain

Another kind of spam email hits the user’s curiosity and gullibility. Often times email chains will tell interesting stories and persuade you to pass the message on to others, otherwise you will be forced to do so, or suffer some very serious consequences. This type of spam has appeared for a long time and has been widely condemned, but there are still unscrupulous people becoming victims of it without knowing it.

Email spoofing (email Spoofing)

Email spoofing (email Spoofing)

Quite similar to a phishing email, but instead of using a technique to make spam methods more credible, many spammers will go ahead and send messages that appear to come from an email address. different from reality. Email Spoofing is basically the creation of email messages with a fake sender address. Because the core email protocols don’t have any authentication mechanism. In general, it attempts to spoof the recipient of the message about the origin of the message. This identity theft technique gives the impression that the phishing email comes from a trusted source, company, or organization.

There are many sophisticated spoofing email tricks out there, such as the “Your account has been compromised!” or “Amazon has a bundle up for you” – phishing emails are hard to discern.

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Fraud infects viruses

Fraud infects viruses

Of course, no one wants to be a victim of the virus. Therefore, when receiving an email that their computer has been infected with a virus, users often panic and believe this unfounded message, and at the same time turn themselves into a victim of another form of spam . Next, the victim will fall into the trap and download software advertised as an anti-virus tool, but in fact they inject themselves into their computers with real viruses. There is also another variation of this spam email, the scammer will infect a victim’s system and ask them to pay for specific anti-virus software. Phishing virus-infected email is an offshoot of phishing email, but is used quite commonly and is relatively dangerous.

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Spam about pornography

Spam about pornography

Distributing or fraudulently related to pornography is one of the most popular activities worldwide. They are not only used on email, but also appear humanly on social networking platforms, or rather, every corner of the internet. Fraud related to pornography is one of the favorite forms of malware distribution among hackers globally. Porn spammers often collect or buy email addresses from people, sending full T&A messages that redirect victims directly to adult websites filled with malicious content, from malicious code, to viruses. , Trojan, to content that violates social norms.

Above is the definition and characteristics of 7 types of spam commonly used on email platforms today. Hope the little information above will help you be more alert to these “old but not old” scams.


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