Every now and then, you hear some big company losing valuable data accidentally or from a potential cyberattack. So, has there been major data breaches post the pandemic? The answer is “Yes. Many.”

This blog lists out the top 10 data breaches that companies suffered in 2020, when they were already reeling under the threat of Coronavirus. 

But before, here is a quick definition of what a data breach is. 

Overview of a “ Data Breach”

Many industry experts define data breaches as a security incident where information gets exposed intentionally or unintentionally. Data breaches also go by different other terminologies, namely Data Leak, Data Spill, and Information Leakage. 

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Top 7 data breaches in 2020: An elite companies list


When: March 2, 2020
What: Personal chats, customer details

Walgreens is the second largest pharmacy chain in the United States. On March 2, the company announced that a flaw in the mobile app may have exposed customer details to the web. It was later confirmed that a large database of prescription numbers, drug names, shipping addresses, and even customer conversations has been exposed in the data breach. There was no specific count, but one can guess by considering the total downloads of the app, which is 10+ Millions.



When: March 5, 2020
What: Customer details 

One of the three largest telecom operators in the United States came under the scanner on March 5, after a malicious attack by a third-party email vendor. The attacker gained access via a T-Mobile employee email account and accessed customer information. This data breach included social security numbers, financial accounts information, phone numbers, billing information, names, and addresses. 



When: March 24, 2020
What: Personal chats, customer details

Although the breach wasn’t in-house, the tech giant was the end-sufferer nevertheless. Canon Business Process Services, a third party vendor that manages over 280,000 current and former employee records of GE got disclosed on March 24. 



When: April 14, 2020
What: Credentials of 500,000 accounts

The most popular teleconferencing app experienced the biggest security data breach of its lifetime when a hacker got access to its user database and uploaded it on the dark web for sale for as low as $0.02. This included email addresses, passwords, personal meeting URLs, and host keys. 


Home Chef

When: May 20, 2020
What: Information of 8 million users

Chicago-based meal delivery service Home Chef confirmed its data breach 2 weeks after the hacker listed its information for sale on dark web. The company declined, the allegation, saying not all customers were affected. The data that was up for sale, included customer names, email addresses, phone numbers, and last four digits of credit card numbers.



When: June 17, 2020
What: Employee details

One of the biggest IT managed services companies in the world, Cognizant became victim to a series of ransomware attacks. The company revealed that it has lost its user’s information to a ransomware attack starting from April 17. Information breached were usernames, SSN, Tax IDs,  financial information, driving license numbers, and passport details. There are no specific records of the size of the data stolen, but the company has close to 300,000 employees and over $15 billion in revenue.



When: June 23, 2020
What: Business accounts

This was due to a security lapse. Twitter’s business accounts were out in the open when the social media company’s application suffered a security lapse. The impact was an undisclosed number of business accounts and their unique details, such as usernames and passwords, phone numbers, and last four digits of credit cards. 


Data breaches are rising. Companies are at a constant threat from cyber criminals from around the world. On top of that remote working or work-from home models have left companies even more vulnerable. As an individual, keep you and your company’s information secured and away from the reach of potential hackers.