Los virus son programas maliciosos que se propagan a través de Internet y pueden causar daños graves a los sistemas informáticos. Estos virus se esconden en archivos o correos electrónicos que parecen inofensivos y, una vez que se descargan o abren, infectan el sistema y se propagan a otros dispositivos y redes. Algunos virus pueden robar información confidencial, como contraseñas y números de tarjetas de crédito, mientras que otros pueden dañar archivos o hacer que el sistema se vuelva inestable.

Es importante tomar medidas para protegerse contra los virus, como mantener el sistema operativo y los programas antivirus actualizados, evitar descargar archivos de fuentes desconocidas y ser cauteloso con los correos electrónicos de remitentes desconocidos o sospechosos.

Las páginas de contenido adulto, también conocidas como “pornografía” o “sitios para adultos”, contienen material sexual explícito destinado a un público adulto. Estas páginas son accesibles en Internet y, aunque algunas de estas páginas de videos xxx pueden ser gratuitas, muchas requieren una suscripción o un pago por acceso.

Es importante tener en cuenta que el acceso a páginas de contenido adulto ya sea, redtube, xnxx, pornohub, xvideos, o similar puede ser ilegal en algunos países y que el material que se encuentra en ellas puede ser ofensivo o inapropiado para ciertas personas. Además, las páginas de contenido adulto a menudo contienen virus y malware que pueden dañar el sistema informático, así como spam y pop-ups no deseados.

Es importante ser cauteloso al acceder a páginas de contenido adulto y tomar medidas para proteger la privacidad y la seguridad en línea, como usar una conexión segura y un software de protección contra virus y malware actualizado.

En resumen, tanto los virus como las páginas de contenido adulto presentan riesgos para la seguridad y la privacidad en línea, y es importante tomar medidas para protegerse y ser responsable al utilizar Internet.

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The hackers’ target was high: a major medical research institution working on a cure for covid-19.

Hackers manage to get the University of California, San Francisco (UCSF) $ 1.14 million after undercover negotiation.

An anonymous message determined to the BBC to follow the negotiations in a live chat found on the dark web.

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Behind the attack, on June 1, was the criminal gang Netwalker.

Cybersecurity experts say these types of actions are controlled out across the world, sometimes for even larger sums, in contravention of the advice of security organizations like the FBI, Europol or the National Center for Cyber ​​Security at UK.

Netwalker has been linked to at least two other ransomware attacks, or data hijacking, against universities in the past two months.

At first glance, their dark web page looks like a standard customer service site, with a FAQ tab, a “free” trial offer of their software, and a chat.

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But there is also a countdown timer that comes at a time when hackers double the price of your ransom or remove data that they have encoded with malicious software (malware).

After logging in, UCSF received this message on June 5.

[Operator]: “Hello UCSF, don’t be shy, we can work together on the current incident.”

Six hours later, the university requested more time and details on how the hacked information would be removed from a Netwalker public blog.

[Operator]: “Done. Your details have been hidden from our blog. Now let’s start the discussion.”

Knowing that UCSF generates billions of dollars a year, hackers demanded $ 3 million.

But the UCSF representative, who may be an outside negotiation specialist, explained that the coronavirus pandemic has been “financially devastating” for the university and asked them to accept $ 780,000.

[Operator]: “How am I going to accept $ 780,000? It’s like I worked for nothing. You guys can raise the money in a couple of hours. Take it seriously. If we release our blog, information and student records, I’m 100% surely they will lose more than what we ask for. We can agree on an amount, but so, because I take that as an insult. ”

[Operator]: “Save that $ 780,000 to buy McDonald’s for your employees. It is very little for us.”

After a day of proposals and counterproposals, UCSF said it had raised all available money and could pay $ 1.02 million, but cybercriminals declined to drop below $ 1.5 million.

[Operator]: “I spoke to my boss. I sent him all the messages and he cannot understand it from a university like yours, from four to five billion a year. It is very difficult to understand and accept that they can raise US $ 1,020,895. But hey, I think your accountants / departments can raise $ 500,000 more. So we will accept $ 1.5 million and we will all sleep well. ”

Hours later, the university gave details of how it had obtained more money and a final offer of US $ 1,140,895.

[Operator]: “Okay. Now they can sleep well: D When can they pay?”

And the next day, 116.4 bitcoins were transferred to Netwalker’s electronic wallets, and UCSF received decryption software.

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UCSF is now assisting the FBI with its investigations as it works to restore all affected systems.

“Encrypted data is important to some of the academic work we do as a university serving the public good,” he told the BBC.

“Therefore, we made the difficult decision to pay a portion of the ransom, approximately $ 1.14 million, to the people behind the malware attack in exchange for a tool to unlock the encrypted data and return the information they obtained.” he indicated.

“It would be a mistake to assume that all the statements and statements made in the negotiations are objective.”