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Sergio de los Santos

Innovation and Labs Leader at Telefónica Tech. He holds a bachelor’s degree in Computer System Engineering and a master’s degree in Software Engineering and Artificial Intelligence from the University of Málaga.



The Attack on SolarWinds Reveals Two Nightmares: What Has Been Done Right and What Has Been Done Wrong
Sergio de los Santos

The Attack on SolarWinds Reveals Two Nightmares: What Has Been Done Right and What Has Been Done Wrong

All cyber security professionals now know at least part of what was originally thought to be “just” an attack on SolarWinds, which has just truned out to be one...
Tell Me What Data You Request from Apple and I Will Tell You What Kind of Government You Are
Sergio de los Santos

Tell Me What Data You Request from Apple and I Will Tell You What Kind of Government You Are

We recently found out that Spain sent 1,353 government requests for access to Facebook user data in the first half of 2020. Thanks to Facebook’s transparency report for the...
A Simple Explanation About SAD DNS and Why It Is a Disaster (or a Blessing)
Sergio de los Santos

A Simple Explanation About SAD DNS and Why It Is a Disaster (or a Blessing)

In 2008, Kaminsky shook the foundations of the Internet. A design flaw in the DNS made it possible to fake responses and send a victim wherever the attacker wanted....
How Traditional CA's Are Losing Control of Certificates and Possible Reasons Why Chrome Will Have a New Root Store
Sergio de los Santos

How Traditional CA’s Are Losing Control of Certificates and Possible Reasons Why Chrome Will Have a New Root Store

It’s all about trust. This phrase is valid in any field. Money, for example, is nothing more than a transfer of trust, because obviously we trust that for a...
What Do Criminals in the Ransomware Industry Recommend so that Ransomware Does Not Affect You?
Sergio de los Santos

What Do Criminals in the Ransomware Industry Recommend so that Ransomware Does Not Affect You?

We all know the security recommendations offered by professionals on malware protection. Frequently: use common sense (personally, one of the least applicable and abstract pieces of advice that can...
Conti, the Fastest Ransomware in the West: 32 Parallel CPU Threads, but… What for?
Sergio de los Santos

Conti, the Fastest Ransomware in the West: 32 Parallel CPU Threads, but… What for?

Conti, the fastest ransomware, is just one example of how this threat is evolving. Discover what tricks it uses and why in this article.
OpenPGP: Desperately Seeking Kristian
Sergio de los Santos

OpenPGP: Desperately Seeking Kristian

Open Source applications run on a server system that has never worked properly. Why does this happen?
More and shorter certificates with a lower lifetime: where is TLS going to?
Sergio de los Santos

More and Shorter Certificates with a Lower Lifetime: Where Is TLS Going to?

Cryptography is undergoing a renewal of all that is established. Know about all the events that are transforming the way the web works in this article.
Apple introduces up to 14 signatures in XProtect given the malware flood for Mac
Sergio de los Santos

Apple introduces up to 14 signatures in XProtect given the malware flood for Mac

What is Apple doing about Shlayer malware? We analyze the main tools that MacOS is using to face this threat.
New App to Clean Metadata More Easily
Sergio de los Santos

New App to Clean Metadata More Easily

We are not going to repeat the dangers of metadata, since it has been discussed for quite some time now. However, we can try to make its management and cleaning simpler. Some...

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