Good morning, damn and damn! How have you spent the week? We hope you have found a place to read all the interesting things that we have told you and, if not, this is the time to catch up. First things first: Mercadona has acquired a facial recognition system that has misled us all a little, here we tell you what we know about it. In addition, we have told you how the contact tracking application that is being tested on the island of La Gomera, in the Canary Islands, works, waiting to see if it is implemented in the rest of the country or not. We have also created a small manual so that they do not strain you with the apps: avoid downloading the fraudulent ones with these simple clues and, of course, our weekly office has been on time to solve your doubts about the content that the social networks and apps delete collaborative. For the rest, we leave you like every Saturday a small list of readings from the technological field so that you are aware of what is moving in this world and the curiosities that it generates. To read! Big brands say that with hate speech circulating on Facebook they do not pay for advertising This has been a hot topic in recent days. After the scuffles that some networks such as Twitter or Facebook have been having with messages from Donald Trump, now they are large advertising companies that are advertising boycotting Facebook for not more effectively curbing hate speech. From Adidas and Coca-Cola to Ford and Starbucks they have taken part in the “Stop Hate For Profit” campaign (which can be translated as not letting them benefit from hate). This article in the Public newspaper explains this situation in detail. But will the boycott affect Facebook somewhat or not? According to this analysis by the BBC, the short answer is yes. Not surprisingly, practically 99% of the income Facebook receives comes from advertising. Even so, it is not easy to estimate how far it can affect the company, and what they coincide in this article is that Facebook is very far from collapsing economically. After all, the reality is that advertising on Facebook is worth more to small companies that use their audience targeting techniques than large companies, which can advertise anywhere with large campaigns. More mishaps with digital platforms: India has blocked a long list of Chinese applications This is a good example of how a real-life conflict also affects the life of its citizens in the online world. The military confrontations that India and China have had on its borders in recent weeks have caused the first country to ban the use of a long list of Chinese mobile applications, as detailed in this report by The New York Times (English). India claims that the apps would be secretly transmitting data on its population outside the country, so it cuts them off at the root. Goodbye, for example, to TikTok. Something we always tell you: a smart home is more vulnerable than if light bulbs, bells, refrigerators, speakers … More smart pots are gradually getting into our homes connected to the Internet. Although having a smart home itself takes time (due to the costs and the implementation of the home automation system), estimates say that things will not stop increasing. Therefore, cybersecurity experts do not tire of warning of the vulnerabilities they may have and that if we are going to use them, we should do it with our heads. This article from The Conversation is yet another reminder of this situation and gives several clues to establish safe practices at home (also to apply with your smart toilet, yes). If you change your phone number, make sure to deactivate your WhatsApp service with the previous one. When we migrate to a new phone number, it is important that we deactivate the previous number in the service, as not doing so may cause the next person to inherit your number to have access to your messages.