Now let's look at a not so rare scenario. You are a user of a social networking platform. Click on one link and the screen automatically turns blue, with a warning message prompting you to call a toll-free number to repair serious damage to your computer. You call and a polite technician responds and promises to repair everything completely, with a price of course. You then give your card details to pay for it software that will save you. Of course the software does not work and the technician disappears. You just became a victim vishing.
Vishing is a form of attack that uses verbal means to persuade them users that they have to do something specific that will solve a problem computer. Many times vishing is a continuation of it Phishing.
The link that users click on is usually one on-line advertising related to his personal interests. The malware it was already installed on the link and when it is selected it locks the system and only the malicious technician can undo it.
But how common are attacks? vishing;
In general, 2015's worldwide credit card attacks cost 16 billions of dollars. Vishing reached 1 billion. In essence, such an attack can occur at any one time hacker gain access to personal information of victims.
Vishing is fruitful when the Cybercriminals know little about the interests of users. In the end, they create a sense of urgency to solve a problem and forget that they are going to do it.
What are the signs that will alert you to it vishing;
If the "technicians" are legal, it should not be difficult to certify their professional identity by a simple phone call. If they cannot or do not provide the information needed to verify their identity, they are not trustworthy. If on the other hand they provide contact information, it is still important to verify their identity by using a public telephone number to call that organization.
It is well understood that during an emergency, the mind blurs. That is why there should be calm and immediate recording of the technician's information, without giving the user.
We must not forget that a technician who is actually trying to save a computer from malware will strongly advise the user to change account passwords, update banks and credit card companies, and closely monitor financial transactions.
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