Top Cyber Attacks in 2021
                     Top Cyber Attacks in 2021
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Cyberattacks are the primary concern of today's organization; as of 2021, the major attacks are 
Ransomware attacks. Ransomware attacks are growing in severity, and being regular headlines in 
cybersecurity achieved national attention on cybercrime. Hackers are exploiting security weaknesses and 
accessing data of organizations, governments, and healthcare sectors, demanding tens of million dollars 
of ransom. Let's take a look at Top cyberattacks in 2021.
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Top Cyber Attacks in 2021
1.      CNA
In March 2021, CNA, the largest insurance company in America, was attacked by a 
hacker group encrypting 15,000 devices, including remote employee systems. They 
gained access to the system and grabbed over 75,000 people's records, including 
names, SSN, and health records of every individual. This attack is associated with a 
Chicago-based company, Evil Corp, used as malware called Phoenix Crypto Locker. After 
two months, CNA has paid a ransom amount of $40 million to recover the access to 
encrypted systems.
2.    Brenntag
In early May of 2021, Brenntag, a chemical distribution company, was attacked by the 
Dark Side Ransomware gang. The hackers gang encrypted data of over 150 gigabytes 
from their compromised network, and they demanded a ransom amount of over $7.5 
million through bitcoin.
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3.    Colonial Pipeline
In May 2021, Colonial Pipeline, a significant fuel provider, was attacked by a Russian 
hackers group called DarkSide. This attack severely impacted petrol, diesel, and jet 
fuel supplies over the East Coast of America. They gained over 100 gigabytes of 
sensitive information and demanded over $4.4 million through bitcoin.
4.   JSB Foods
In June 2021, JSB Foods, a Brazil-based meat processing company, was attacked by a 
hacker group. JSB Foods are forced to stop food operations, leading to a shortage of 
meat and increasing meat cost. This disruption made the company pay the ransom 
amount of $11 million, the highest ransomware payment in recent history.
5.    Kaseya
In July 2021, a Florida-based company, Kaseya, was attacked by REvil, a Russian-
based organization. They encrypted over one million systems by sending Kaseya's 
Virtual System Administrator a fake software update. As a result, this attack affected 
over 1000 businesses. And the group demanded over $70 million through bitcoin.
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How to prevent the next major attacks?
Recently, ransomware attacks have targeted many highly reputed companies and 
organizations. So, the drawbacks of these attacks can reveal the prevention 
methods to protect the data from attacks.
• A strong incident response plan would help to deal with ransomware events.
• Implementing security solutions would help prevent sensitive data from being 
compromised in cyberattacks. It also helps prevent hackers from accessing and 
encrypting data from an organization's systems.
• Limiting user access and control over data can mitigate the risks of attacks.
• Implementing strong security measures to protect sensitive data, such as 
encryption or tokenization, are a good choice. 
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