What is ransomware?

[subornaakter20]

Explaining infection routes and countermeasures
2017-06-15(Updated: 2024-12-10 )
Security measures

Ransomware was reported as big news in Japan as well.

I'm sure there are many people who understand what a cyber attack is, but don't actually know the details.

In fact, emails are often used as a hook to medical practice email list spread ransomware, so not only the recipients but also the senders need to be careful.

This time, we will briefly explain the "threat of ransomware" which is something you may not be able to ask about anymore!



Table of Contents [Hide]

1.What is ransomware?
2. Infection route
3. Countermeasures
4. Future global trends


What is ransomware?
It is a type of malware (malicious program) .

It restricts access to the infected system and encrypts files, making them unusable. It is also called ransomware because it demands a ransom in exchange for restoring the encrypted files.



Ransomware is a type of malware (malicious program).





Transmission
Ransomware can infect a computer by getting it to click on a file or URL link attached to a spam email , or by getting it to visit a maliciously altered website, which exploits vulnerabilities in the computer's operating system or software.



Transmission



countermeasure
One way to protect yourself from ransomware is to "not touch anything unnatural . "

Within our company, we are urging employees across the company not to open emails with unnatural Japanese in the title or install any attachments.

In addition, in case of infection, it is also effective to always keep your operating system and security software up to date, and to back up important data and store it in multiple locations.