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.
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So what about Yipin You, who are supposed to have a long lifespan, are not burdened by luck in the world, and live a few years longer than ordinary people Emperor Yuan Jing seemed to be talking to himself, and seemed to be with this Talking to an ancestor six hundred years ago I ascended the throne at the age of twenty and defeated all enemies.
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Find the Qionglin Sect in Luzhou, Beiju, I don t even need a copper coin for the ninety one cents. I just hope that every market bookstore outside the Xianjia Ferry and at the foot of the mountain will have a few landscape travel notes.Yao Lingzhi did not recognize him at first, but the first words he spoke made Yao Lingzhi stunned. Miss Yao, we finally meet after not seeing each other for many years.
At the same time, he tended to become a drunkard. In Li Baoping s small bookcase, there was a colored map of counties and counties issued by the Dali court.I used to bring Gu Can here to play, and he yelled If I had to worry about it, I used a hatchet to cut some branches to build a frame, and then covered it with leaves and grass.
This is a real and meticulous job. Chen Ping an, you can t be careless. Pindao has this recipe. It not only heals wounds, but also strengthens the foundation and cultivates the body.If he didn t move it, it would be an eyesore. If he moved it, he would feel dirty. As a result, the young man did not hear clearly what Fu Nanhua said behind him.
The man hesitated for a moment, did not bother, and led them to the main room in the backyard. An old man He was gently tapping the table with his old cigarette stick.don t you feel a pity The girl opened her mouth slightly, her whole body felt as if she had been struck by lightning, and her heart was filled with despair.
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See that familiar prohibition.Shao Nan was more sure of his thoughts.Xiaoxia is very grateful.Before the person arrived, Fu Xiaoxia s voice came into the living room.
I didn t even communicate with Lan Yuanzhou and others much, just get together every once in a while.You Master Pingkang didn t expect Shao Nan Ftwxggckp Ed Reviews For Biolyfe Cbd Experiences Gummies User to be like this at all, pointing at Shao Nan, speechless for a moment.
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If True Monarch Jin Hong knows something about formations, he can find out.The eyes looking at Shao Nan are a little different.
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So analyzing intelligence is a very important thing.When the disciples of Dao Natural Sect saw Shao Nan ascending into the sky, they were all stunned.
After throwing down a Prime Cbd Loss Weight Gummies Reviews Ed Prime Success Horixb Your Body For For few innocent spells, the four of them woke up one after another.Shao Nan had informed Zihuang of Chai Jingming s experience long ago, and even put forward the conditions that Chai Jingming hoped to exchange for the protection of Jiuli Mountain with cooking secrets.
I feel a lot more relaxed on the boat.Don t take off the camouflage, wait until you go to sea for a while Shao Nan hurriedly stopped the twopeople.For countless thousands of years, all the people who strayed into the fog have never been able to come out alive.
I didn t expect that Shao Nan s formation would still change.To be continued.Chapter 496 Undercurrent from the Immortal Realm Such an important event needs to be announced, of course it cannot be hasty.
Obviously still not as good.Shao Nan stood beside Lan Yin, not saying anything.I know, it works Shao Nan didn t explain too much.Okay You wait Lan Yin looked at Shao Nan so firmly, so he didn t say any more.