Your cell phone already has a shield against annoying calls

Discover how your phone can become a digital bodyguard against the most insistent sellers and scammers.

The art of avoiding the most insistent sellers and scammers

Ah, the unwanted calls. Those wonderful reminders that your phone number has been sold, resold, and probably auctioned off in a digital vault. Most are simply salespeople with an unwavering faith that, on the tenth call, you will change your mind about that insurance you never applied for. But, how charming! Others come from creative scammers who, with the tenderness of a wolf in granny’s clothing, just want to “verify” your bank account details. Customer service of dubious origin, without a doubt.

Luckily for the sanity of humanity, devices with Android 6.0 and higher come equipped with tools to turn your cell phone into a fortress. Because, let’s face it, who hasn’t fantasized about having a digital butler who tells the annoying: “I’m sorry, the lord is not for you”?

RelatedTake control of your phone and block spam

Your personal detective: Caller ID and spam

This nifty feature from Google is like having a professional gossiper built into your phone. It shows you information about who is calling you before you make the mistake of answering. Is it a legit company or just “Private” for the umpteenth time? The screen tells you, saving you the awkward conversation where they try to convince you that you have a problem with your electricity service that, coincidentally, they can only solve if you give them your password.

To activate this benevolent spy, the ritual is this simple: Open the Phone app, look for the menu (usually hidden near the call button like playing hide-and-seek), enter Settings, then Caller ID and spam and, finally, activate the option. Your phone, in an act of digital camaraderie, will send suspicious numbers to Google headquarters for analysis. It’s almost like being part of an anti-crime squad, but from your couch.

The wall of silence: The spam call filter

This is the nuclear option. If the identifier is the detective, the spam filter is the concrete wall that prevents passage. Activate it and calls from numbers identified as junk calls won’t even ring. They will simply end up in your history, where you can observe them with the satisfaction of someone who has dodged a bullet. It is activated in the same Caller ID and spam menu, looking for the “Filter spam calls” option. It’s the digital equivalent of playing the most irritating hold music for those who harass you.

The black list: Manual blocking of heavy goods

For those particularly tenacious contacts, those that insist with the perseverance of a drop of water on a stone, there is the classic option: the manual lock. Simply locate the number in your history, hold your finger on it until a menu of options appears (like magic), and select “Block” or “Add to blacklist.” Ready! You have granted digital divorce to that number. It is therapeutic, fast and does not require lawyers.

Why bother building this digital fortress?

Well, apart from preserving your sanity and preventing a carpet salesman from interrupting your dinner, it’s a matter of security. Every time you answer one of these calls, you confirm that your line is active, which makes you a more juicy target for future spam and phishing campaigns. Blocking and reporting is not just an act of self-defense; It’s a public service that helps poison the well for all those scammers.

And if, despite all these barriers, you end up being a victim of fraud, there is no choice but to turn to professionals. You can file a complaint with the Cyber ​​Police. Because sometimes, even the sharpest sarcasm needs legal backing.

Ready to turn your phone into a hassle-free zone? Share this digital survival guide on your social networks and help your friends fight their own battle against spam. And if you want more tricks to tame your technology, explore our related content and become a master of digital art.

Satellite Internet, the bet to close the digital divide in Mexico

Mexican geography limits fiber deployment, but low orbit satellites are emerging as an alternative.

Satellite internet as a solution to the digital divide in Mexico

Mountains, jungles and deserts make Mexico one of the countries with the most complex orography in Latin America. Bringing fiber optics to isolated communities implies an investment that is difficult to recover with few users. As a result, one in five households still lack internet access or receive poor service.

Faced with this scenario, low orbit (LEO) satellite internet is emerging as a strategic alternative. “Deploying physical infrastructure in Mexico is expensive due to geography. In many cases, satellite internet represents the most viable option to connect areas where fiber will not reach in the short term,” explains Ernesto Piedras, director of The CIU. Companies like Starlink, with more than 10,300 active satellites, already operate in the country. Since May 2021, it obtained a concession and closed 2024 with 160,631 subscriptions, making Mexico its second Latin American market, only behind Brazil. Starlink has signed contracts with CFE Telecomunicaciones for up to 1,556 million pesos to connect remote communities.

However, cost remains a barrier. While a fiber optic plan costs an average of 544 pesos per month, satellite internet starts at 899 pesos, plus equipment and installation. “Commercially it is still not as viable because it is still more expensive and requires purchasing an antenna whose price remains high,” says Fernando Esquivel, from The CIU. The service makes economic sense when it is shared between communities or companies, and with the support of public policies.

Experts agree that this technology will not replace fiber optics, but will complement it. “Terrestrial services are faster and have lower latency. Satellite communication reaches areas that fixed internet would not reach,” says Hugo Simg, from MediaTek. Deployment also requires regulation and coordination between governments and companies. The race to connect Mexico is no longer only being fought underground, but from space, where a new generation of satellites promises to reduce the digital divide that keeps millions out of the digital world.

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Banks prepare for biometric facial controls in October

Banks claim to be ready for facial biometrics in branches since October.

The main banking institutions in the country claim to be prepared for the new regulations on facial biometric controls when opening accounts, which will come into force next October.

What did the banks declare?

Marcos Ramírez, general director of Grupo Financiero Banorte, pointed out that the institution has made progress to reinforce the identification and security of its users. “We are in time and form with everything established by law and a little ahead, with the prudential limits of the law,” he indicated.

These measures will strengthen control over customer identification. Since 2018, by regulation, fingerprint biometrics are already required to open accounts.

Implementation details

On July 1, the National Banking and Securities Commission (CNBV) incorporated facial biometrics into the regulation for multiple banking in customer identification and authentication. Institutions that opt ​​for this mechanism must comply with technical, operational and security requirements.

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AI detects breast cancer with 90% accuracy

An autonomous model analyzes thermographs and classifies tissues without human intervention.

An artificial intelligence model developed by Raúl Castro Ortega, a researcher at the Polytechnic University of Tulancingo, manages to identify breast cancer with an accuracy of 90%. The results were presented during the SPIE Photonics Europe 2026 International Congress, in Strasbourg, France.

How the system works

The system uses convolutional neural networks with attention mechanisms to analyze breast thermographs. Unlike traditional methods, the model autonomously learns the patterns of healthy and diseased tissue, without a specialist previously defining the characteristics of the images. This reduces processing time and improves consistency of results.

The study, titled “Breast thermography analysis using convolutional neural networks with attention mechanisms,” uses an algorithm based on the heat diffusion equation. This approach focuses analysis on thermogram regions of interest and classifies tissues with high levels of sensitivity and specificity.

Impact on early detection

The accuracy achieved represents a significant advance for the early detection of breast cancer, which can improve survival rates and facilitate timely treatment. The researcher highlighted that the system does not replace the specialist, but rather works as a support tool for faster and more consistent diagnoses.

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