Customers buy televisions at a megastore during a Black Friday sale in Sao Paulo, Brazil, on November 25, 2021. (NELSON ALMEIDA / AFP).

The already popular Black Friday, which will be followed by “cyber Monday” (“cyber monday”), marks the beginning of the Christmas shopping season and mass consumption, but is also the preferred lure for cybercriminals to launch their attacks through the network; there are very simple tips to take care of that make it more complicated.

Each death of a celebrity, each sporting event (a World Cup or an Olympics) and each date indicated in the calendar is used by the cybercriminals to launch their attacks against consumers and users of the Internet, and the main institutions that ensure Internet security and specialized companies activate their batteries of recommendations to avoid traps.

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Among them, the most recurrent when it comes to a date with such a purely commercial nature is the “phishing“: the impersonation of an internet page by another practically identical in which users enter their data and carry out commercial transactions that are actually a scam.

First tip: before completing a transaction, the consumer must make sure that the page is secure, and to do so check that the address where he is browsing begins with “https”, and that it has a security certificate and trust seal.

This has been stated by sources from the National Institute of Cybersecurity of Spain (INCIBE), who have detailed to EFE the decalogue of recommendations that users must take into account before the Black Friday and the proliferation of online offers.

INCIBE has underlined the importance of analyzing the emails received by users offering promotions to ensure that it is the official brand that sends it before clicking on a link, and has pointed out that It should also be verified that the page has a security and privacy section that details what data they collect and how they use it.

According to this Institute, we must be wary if the page does not have legal notice with information about the company, conditions of sale, returns or complaints, and you also have to be suspicious if the prices are significantly below the market or if all the products have the same amount.

To their decalogue of tips they add that of searching the network itself for information about the reputation of the store in which the transaction is to be made -through the ratings or reviews of other users-, and pay special attention to the “aspect” of the store, that its design is homogeneous, that the images have quality and that all the sections are complete and well written.

Customers buy televisions at a megastore during a Black Friday sale in Sao Paulo, Brazil, on November 25, 2021. (NELSON ALMEIDA / AFP).

Numerous companies specializing in computer security and authentication have also issued their recommendations regarding the proliferation of offers and promotions on the occasion of the Black Friday and “cyber monday” and so that purchases are made with confidence and security.

The international company WatchGuard Technologies has warned that the “most obvious” form used by criminals these days is “phishing” through email, suggesting that users avoid any email that is suspicious.

And he has also underlined the relevance of not providing the details of a bank card when there is no guarantee of protection, of not buying on any website and of look for the padlock in the browser or the letters “https: //”, which ensure that communication with that site is encrypted.

The computer security company ESET has warned that criminals have launched many malicious email campaigns to steal user information, especially that related to their credit cards, and has specified that one of the techniques preferred by scammers is the of supplanting transport or logistics companies to make their emails credible.

Specialized in the information security sector, the company S21sec has also pointed to the “phishing”As the main threat during a period of increased shopping like the one that begins now, and the proliferation of attractive content that encourages consumers to“ click ”on a link from which criminals can steal personal and financial information .

And to the most common recommendations, it adds that of not filling out forms on unreliable websites and that of keeping the operating systems of computers and mobile device applications up-to-date.

According to data from the multinational Kaspersky, fraud in digital payments multiplies during sales dates or seasons. The company has detailed that its systems have detected more than 200,000 “junk” or unwanted (“spam”) emails containing the words “black friday”.

Impersonations (“phishing”) Most recurrent, according to the data provided by this multinational, are those that replicate the pages of Amazon, eBay, Alibaba or Mercado Libre.

As a last piece of advice, institutions and companies agree on the importance of distrusting pages that offer prices well below the normal market and attending to one of the oldest recommendations, which has become almost an aphorism: “too good to be true”.

According to the criteria of

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