La confianza cero es un concepto ampliamente conocido en ciberseguridad, arraigado en la idea de que ninguna entidad, interna o externa, debe ser considerada como confiable por defecto. Aunque este enfoque tiene sus orígenes en la tecnología de la información (TI), su aplicabilidad se ha extendido recientemente al ámbito de la tecnología operativa (OT), donde los líderes de ciberseguridad están adaptando sus principios a los requisitos únicos de estos entornos.
Orígenes y principios fundamentales
La historia de la confianza cero se remonta al principio de privilegio mínimo (POLP) de mediados de la década de 1970, que aboga por otorgar solo la autoridad necesaria para realizar funciones específicas. Este principio establece la base para la confianza cero al limitar el acceso a datos y recursos únicamente a entidades autorizadas para su propósito legítimo. En esencia, la confianza cero tiene dos objetivos principales: prevenir el acceso no autorizado y minimizar las zonas de confianza explícitas.
Aplicación en entornos de OT
Si bien existen numerosas metodologías para implementar la confianza cero, cada una adaptada a las necesidades específicas de un entorno, es esencial comprender algunos conceptos clave para su implementación en OT.
Comenzar por algún lado: La implementación de confianza cero debe verse como un viaje, priorizando la seguridad y la eficiencia en función de la criticidad y el riesgo de exposición. Se recomienda comenzar con flujos de trabajo individuales y avanzar gradualmente.
Adaptación para OT: Los principios generales de confianza cero en TI, como la desconfianza de cualquier conexión remota y la evaluación continua del acceso, deben modificarse para su aplicación en OT, teniendo en cuenta las limitaciones del entorno.
Obtener Visibilidad: La comprensión completa de los activos, recursos y entidades en un entorno de OT es fundamental para identificar riesgos y priorizar la seguridad. Se deben utilizar sistemas de descubrimiento de activos para este propósito.
Aplicar Controles: Basándose en la visibilidad obtenida, se deben aplicar controles de seguridad en varios puntos, tanto a nivel de endpoint como de red, para limitar el acceso no autorizado y proteger los activos críticos.
Consideraciones Prácticas a Nivel de Red
A nivel de red, la implementación de la confianza cero implica la aplicación de políticas de segmentación estrictas para limitar la comunicación solo a los recursos necesarios. Los dispositivos de red también deben imponer grupos de segmentación para evitar movimientos laterales de los atacantes y la propagación de malware.
Además, es crucial proteger los activos vulnerables sin interrumpir su funcionalidad, utilizando sistemas de prevención de intrusiones y firewalls diseñados específicamente para OT.
Implementar la confianza cero en entornos de OT es un proceso complejo pero necesario para proteger la infraestructura crítica y garantizar la continuidad operativa del negocio. Al comprender los principios fundamentales y adaptar las mejores prácticas de seguridad de TI, las organizaciones pueden fortalecer sus defensas cibernéticas y mitigar los riesgos en entornos de OT.
Pocas tecnologías crecieron tan rápidamente como la computación en la nube y las coubicaciones —tanto dentro del mercado de los centros de datos como para la sociedad en general—.
Erich Wetzel, líder de la Amti, participó en el 9° Foro Nacional IMEF de Infraestructura, en el que se ventilaron acciones clave encaminadas a ofrecer respuestas a los retos de la demanda de servicios de punta.
La adopción estratégica de la inteligencia artificial en la fabricación puede ofrecer eficiencias significativas. Desde mejorar la seguridad hasta optimizar las cadenas de suministro, la IA está transformando la forma en que las empresas abordan los desafíos laborales y planifican su futuro. Los líderes de la industria deben estar preparados para abrazar esta revolución tecnológica y capitalizar las oportunidades que la IA presenta.
Boom, boom However, the bombs also exploded before the bomb dragon died, causing a lot of obstacles to the interceptors.Archangel Feida answered without thinking. Those 1,000 units of fourteenth level archangels are of course the strongest and most core unit of the Seventh Legion.
As for whether the other party will refuse. I was a bit apprehensive before, but judging from the attitude of the Blood Sea Overlord, it was completely impossible to refuse.Please don t refuse Zhao Hao was not happy because the other party waived the payment.
At this time, the bystanders watching the battle also vaguely experienced the tip of the iceberg of the aircraft carrier flow, but this tip of the iceberg made them feel cold in their hearts.Otherwise, the impact of a flying dragon body weighing hundreds of tons falling from a height of tens of meters would crush even an iron man, let alone a body of flesh and blood.
It was this impact that made the Holy Church decide to train players to be its agents.Of course, a few people may not have any intention of watching the show.
The resources that you have worked hard to save are just for use at this time.You must bring two troops, the Phantom Shooter and the Shadow Swordsman, as they are the main force.
Therefore, in addition to going all out, it will also bring the only help into the battlefield.First of all, there is the accompanying fire attack, and the golden dragon will naturally not take it seriously.
Change source app A simple attack will definitely not be able to break through this layer of yellow sand defense.They didn t get any share of the 13,000 tons of ore, so it s normal to get 100 million points in compensation from other sources, right.
It s too early to get the power back The ancient god of death replied calmly, which also explained one thing.What s even weirder is that Chen Ruoli actually wrote a letter to impeach his fianc Qin Hu for 72 illegal things, and every single one of them was substantiated.
Their job was to build roads across mountains and rivers, build bridges, chop wood for fires, dig ditches and carry water, and build camps.The Storm Territory is a steady source of energy that produces Silver Pegasus.
How can they have the face to do so Taken back
All kinds of angry curses continued to sound. Destroying someone s wealth is like killing one s parents.Although they have the same origin, they each have their own ambitions and ideas.
in particular. Roar In the thunderous roar. Four golden behemoths flew past at high speed. Golden dragon The body shape is more than one circle larger than the normal golden dragon, with a wingspan of nearly forty meters.But in this naval battle, such a powerful fleet was actually being beaten unilaterally throughout the entire battle.
If she was not strong enough, something would happen at any time.There was nothing to worry about. That is to say, they are worried that there will be too many in the nest, and at the same time they are afraid of escaping, otherwise they will go straight to the nest
Xiao Bingbing of the He family reminds you after reading this, remember to collect a decayed old face peeking out from behind the door.
Life Breakthrough Potion A life level breakthrough potion tailor made for a certain existence, which contains extremely powerful secrets.Only the area where this passage is located is relatively safe.
Don t look at it on the battlefield. They kill champion level units at every turn, but you think the champion level units are weak.In addition to the elemental pool, he also brought back a box of wishing scrolls, several hundred in number.
For this output, the Golden Valley maintained a scale of hundreds of thousands of people all year round, and more than a few hundred people died every day.Not to mention consuming half of the divine body, he would not hesitate even if it consumed all of it.
Lotus of Fire A spellcaster cast a high level spell that consumed a lot of money and crashed into the undead army.Fifty five, if it doesn t work, forget it Zhao Liang reported the final price.
Don t worry Zhao Hao showed a proud smile on his face, Now the strong men in the Buck Principality have no intention of causing trouble for us Yes, according to the special information he received, those strong men are now looking after themselves.When the aircraft carrier stream emerges, the core position of steel battleships will be replaced.
Although I am worried, there is no way. Some chambers of commerce will be selected to be responsible for transportation tasks, and they will also be turned into tasks and distributed to players.the other side Zhao Hao, who still didn t know what happened after leaving, finally reached the top of the tower.
These words not only showed that they stayed here as promised and did not run around, but also showed that it was time to make a move.They will arrive in the Buck Principality in a few days Zhao Hao understood that the other party was reminding him well, so he revealed his trump card.
Requirements Heroes, war machines. Angel Barrier Defense will be increased by the amount of magic input.Guests, please present your invitation letter. A mechanical voice sounded from the other party s mouth.
Alchemy bomb As long as this thing is buried in the middle of the passage, the reinforcements from the Bucks Principality will be greatly increased when needed.With Turing, at least the supplies are completely luxurious.
Emperor Is he also an emperor Zhang Xuan s pupils shrank.Gui Wujiu s eyes narrowed. The merit of the first world
In this case, instead of taking advantage of others, I should receive it myself.
But this is not the end yet now I suddenly find that it is impossible to even maintain a tie.The little candied haws can t stop eating alone. But her slightly frowned eyebrows still revealed that she was slightly unhappy.
Every flick, every movement, every stillness, are all determined by your thoughts.Looking around, under the three stone monuments, there is a gap of about a hundred feet, but there are many wooden and stone monuments as tall as a person that have sprung up like bamboo shoots after a rain.
However, if your cultivation level is very high and reaches the level of Demon King and Tianxuan Supreme Realm, you can fly away for a month or two but if you are at the Nascent Soul level, you will fall in three to five days.Once you find any signs that something is wrong, call them immediately.
Just as Dao Zun Ying Yuan established the system of the Thirty six Realms of the Eight Dao Sect back then, he actually did not use up the collected Yin and Yang Cave Heavens.Of course, generally speaking, even with such reliance, it is not enough to resist the coming of the great power from the sky or the great supernatural power of a higher realm.
Such endless close entanglement is not his usual practice.Today, it is finally revealed that the soul beads are very useful.
Because the space of the method has been changed, this method is actually a bit like trying to find a sword.It is almost suspected that it is the image of a hanging painting in the void of a Taoist figure crumpled into a ball.
And that Yuan Ziying killed a destined person more than twenty years ago and more than ten years ago therefore, one of him is equivalent to three seals.Although he is only in one altar at this moment, the interior of the four altars is connected, and the weather inside can be seen.
In the blink of an eye, everyone felt that Zhang Xuan in front of them seemed to have turned into Jiutian, and Jiutian was him.Fellow Taoist Yun is no exception. However, if you want to learn this method, you must first start with a battle between fellow Taoists.
Now that the outcome has been decided, to be fair, it is correct to assume that no one is to blame.In the whole world, except for taking no blame, no one has been able to decipher this move head on.
Between the sky and the earth, the two qi rose and fell, and infinite clouds dispersed and gathered.Such a slight display of methods can completely make the Wood Spirit clan return to their hearts with the victory or defeat of the world, but it can save a lot of unnecessary running in.
At present, except for Gui Wujiu who has a vague perception of this view, the rest of the people who have achieved Zhenliu have also never seen through it.The two people in front of them, one named Fan Chang and the other Meng Jun, were guest ministers who defected to the army five or six years ago due to the expansion of their strength.
Then they all turned around and defeated the other two bodies of Gui Wujiu, establishing the victory.Of course, with you two It s a thin difference if it s a fight, a wheel battle can be considered as overcoming the advantage.
Both of them knew that Huang and Shi came together to establish their respective paths, but in the end they each accepted a disciple and that the Demonic Path and Sword Path established by the two were both transcendental and independent from the strength of the sect.Although the upper and lower natural chasms in the world of Ziwei are extremely strong, if it is possible to break through the mystery and teach it directly, then it may not be impossible for the superiors of the nine sects to think of some ways and show the methods below.
As for the foundation of this method, those who have seen the scene of Gui Wujiu s first fight twelve years ago will naturally understand that this is the Ping Wheel magical power.Be careful not to fire cannons all over the sky, as rain and dew will catch them.
When he turned around and thought about it, chicken was still delicious after all.At the level of the Tao realm, there is no good or evil in the heart, and there are no constants.
Now these powers have been turned into his foster care.
Qing Yi s strength has also improved and has reached the Half Step Heaven Realm.Poof Jab Qingye hit the opponent s Tanzhong point, and the opponent also scratched Qingyi s shoulder.
The core family members present nodded in unison and then dispersed.However, they were to comfort the families of the fallen disciples of the academy.
How is this possible Let me send you the talisman and ask.He knew that some aristocratic families cultivated their own dead soldiers.
Well, as a father, we need his help. Regardless of whether he has entered the Ten Thousand Beasts Mountain or not, he has nothing to do with us.Soon, Ruoda s auction house was filled with people, and the crowd was noisy and noisy, even among the disciples of some small families and small forces.
Just now, Ye Fei almost died The energy in the body is drained.He used his sword, turned the clouds and rain, the true fire of the sun, and the sky turning seal to attack Qing Ming.
What do you mean, girl Who is Ye Fei Ye Fei s heart moved and he pretended to be confused.He no longer dared to be tyrannical and couldn t help but beg for mercy.
Soul Leaving Realm So what I have killed strong men in the Soul Gathering Realm.The voice of King Kong Xuan came. It is rumored that Emperor Wa has an astonishing enemy called Lingjiu Sanren, who has also begun to understand the holy way.
It s not too much to ask for a master disciple relationship.The timing was not grasped well, and the whole batch of elixir liquid was all wasted.
There is dry food and water in the ring, which is enough for him to eat and drink.You Yulin in the scroll couldn t help but feel extremely ashamed and angry.
See, just said casually. That s him. Xinglan said hurriedly, his eyes a little excited. I ve been traveling abroad and heard rumors about Ye Fei.Since Ye Fei and Lao Wang both use spiritual consciousness to transmit their voices, they are not afraid of Yulin in the scroll hearing them.
Do you want to overwhelm others with your high realm Ye Fei asked lazily.Poor Elder Kong was unable to use it. Every time he used his spiritual power, it was scattered by Ye Fei s big foot.
It was comparable to a strong man in the Guiyi Guiyuan realm, but he was suddenly overwhelmed by the ferocious beast in front of him.Boom boom boom the ancient heaven and earth are shaking.
In other words, the price of box No. 16 is 600 million.You Everyone was speechless. Because of a small disciple, Tongtian Academy has been criticized.
I heard that the Yin Yang Sect has issued a death order, but I think the Yin Yang Sect is nothing more than that.Three days later will be the night of the full moon.
In these three days of running around, it can be said that Ye Fei has gained a lot.He even did not hesitate to reveal his true face because he wanted to rob him openly.
Teacher Kama, if you are not welcome from afar, please follow me to the city.In this case, It s what the beings there don t want to see.
One day later, deep in the Qinling Mountains, the figure in white appeared at the highest point of the Qinling Mountains.This man has a beautiful face and looks like a frail scholar.
It took about three hours before the dirty power on the wind and thunder swords was completely eliminated.He wanted to secretly improve his strength. It just so happened that he was killed in a no man s land.
He was hungry and couldn t help but open his eyes. This is
Ye Fei couldn t help but was stunned. He found that he was at the edge of the pond in Daliushu Village.Boom At this moment, there was suddenly a powerful energy fluctuation.
At this moment, inside the Dragon Shengtian. A beautiful woman was tied to a stone pillar.His expression was scorching, and the yin and yang were twinkling in his eyes, as if two worlds were alternating.
But on the surface, Ye Fei still greeted him with a smile, because Lin Yin er was still kind to him.Quick, use broken weapons to resist. The woman in white shouted loudly at this moment.
She chewed it carefully and couldn t help but feel
nodded and praised. Senior sister, you Ye Fei couldn t help but be speechless.
If you know the opponent s information in advance, you won t be blinded during the battle.If you feel that the opponent is not strong, you may just attack at all costs.
When encountering an enemy, just act recklessly. If it weren t for this, we wouldn t have missed seeing the fearsome units such as the Golden Dragon and the Deadwood Guard at the center of the team.Demonic disaster It means that the passage to hell will be opened randomly to allow the demons in the abyss of hell to descend.
Because even if you kill the target, you may not be able to get the essence and blood, you can only get it from the opponent.In fact, Zhao Hao had reminded them before that if he did not have reliable combat power, he would probably be manipulated by major forces.
The other party must die He had this realization when he got the information.It flies forward for a certain distance and then lands.
Fire element enchantment A support spell that imparts temporary fire damage to weapons.Since the Green Wolf Tribe was completely wiped out, the totem pole naturally belonged to Zhao Hao in the system judgment and could be stored in the inventory.
For the orcs, there was no such thing as tactics or command.The Shadow Swordsman is probably the high level unit that has suffered the most losses.
Otherwise, with the strength of these guilds, if the star players roar a few times, they can attract a team of hundreds of thousands of players.After all, the target of the extermination is the orc warriors.
Both parties are tricksters, a profession that combines agility and spellcasting.You lose The paladin commander gasped and looked at the seriously injured golden dragon in front of him, knowing that the opponent was the adventurer who led the ambush.
But now he is not far away from the other party, but he doesn t have that feeling.Coupled with a 10 bonus to all attributes, its combat effectiveness is very good.
But of course it is impossible for a large guild to do this.Everything will be done according to the rules. But what I m talking about here is for no reason.
And this is unilateral ravage. Because the bed crossbows and small trebuchets on the city wall could not threaten the three trebuchets, the range was missing.But this time I chose a ghost, a fifth level undead that can only be summoned by advanced soul science.
If you say you want to cripple the other party, then cripple the other party Zhao Hao is such a man who does what he says.Refugees Not all places can withstand the attack of demons, so there will be a large number of refugees.
At this time, Memphira no longer asked the centaur leaders on both wings to stand by, and directly ordered them to rush out and outflank.Now Zhao Hao also understands that if he wants to win, it all depends on the strength of the Storm Guards.
And there was an inexplicable message in his mind, explaining the rules of the arena.Without the support of these players, even if the Sons of Nature Guild eliminates the Wind Whispering Society, the position of boss will have nothing to do with them.
5000 units of second level centaur leaders, 5000 units of fourth level combat dwarves, 2000 units of eighth level phantom shooters, 300 units of eighth level silver pegasus, 1000 units of eighth level shadow swordsmen 120 units of level 10 dead wood warriors and 9 units of level 12 unicorn beasts.
massacre Thunderbirds fell at the Shadow Swordsman s feet one after another.The risk is too great Zhao Hao shook his head gently.
Presumably after this battle, the other party will cultivate a vampire king.The calculation multiplier of basic damage is also several times stronger than that of ordinary ballistae.
The transaction was suspended, and the convoy moved together with the Xionghou Clan s relocation team, which was regarded as a hostage.