7 biggest computer hacks

downloadWith opportunities come problems. Everyday technology is getting new shape and everyday more people are gaining access to personal information. Here is the biggest computer hacks in five years.

  1. Adobe (October 2013)

Number of people affected: 150 million

Information stolen: Email addresses and passwords for 150 million users, according to security vendor Sophos, as well as credit card data for 2.9 million users.

A data dump discovered on the AnonNews website contained the usernames and passwords of some 150 million Adobe customers. (Sophos)

How it happened: Hackers gained access to Adobe’s networks, though exactly how they did it has yet to be publicly revealed. In addition to stealing user information, attackers also downloaded the source code for a handful of Adobe programs, which essentially forms the foundation of the software.

Aftermath: Adobe offered free credit monitoring to individuals who had their credit card information stolen. Others were told to reset their passwords for Adobe products. Password management vendor LastPass set up a site where you can check to see if your email address was one of those stolen; you can find it here.


  1. eBay (May 2014)

Number of people affected: 145 million

Information stolen: Customers’ usernames, encrypted passwords, email addresses, and other personal data. No payment information was taken.

How it happened: Attackers used compromised employee login information to get into the company’s network.

Aftermath: EBay issued a statement asking all of its users to change their passwords “out of an abundance of caution.” The company said it would also work to improve security.


  1. Target (January 2014)

Number of people affected: 110 million

Information stolen: 40 million credit and debit card numbers, as well as 70 million consumer email addresses.

How it happened: According to Bloomberg, hackers used credentials from an HVAC contractor working within Target to then gain access to the retailer’s network.

Aftermath: Six months later, company CEO Gregg Steinhafel was forced to resign over the breach. In March, Target settled a class-action lawsuit for $10 million with individuals who had their credit and debit cards stolen.


4. Home Depot (September 2014)

Number of people affected: 109 million

Information stolen: 53 million email addresses and 56 million credit and debit cards for shoppers at the $80 billion home improvement chain.

How it happened: Home Depot said hackers used a vendor’s login information to access the network and install malware on the retailer’s self-checkout systems, which fed the attackers information on credit card customers in the U.S. and Canada.

Aftermath: Cleaning up after the breach cost Home Depot an estimated $62 million. The company offered free credit monitoring to any customers who used a payment card at a Home Depot store after April 2014.


  1. Anthem (February 2015)

Number of people affected: 88 million

Information stolen: Social Security numbers, employment details, and other personal information maintained by the nation’s second largest health insurer — but no medical data.

How it happened: Investigators speculate the intrusion began months earlier and was perpetrated by Chinese government-sponsored hackers, who are also suspected of breaking into the networks of United Airlines and the U.S. government’s Office of Personnel Management.

Aftermath: Anthem offered free credit monitoring services to those affected by the attack.


  1. JPMorgan Chase (July 2014)

Number of people affected: 83 million

Information stolen: Names, addresses, and phone numbers of account holders at the $2.6 trillion financial services giant.

How it happened: According to the New York Times, hackers gained access to JPMorgan’s network via an employee’s credentials.


7. U.S. Office of Personnel Management (June 2015)

Number of people affected: 22 million

Information stolen: Social Security numbers and other personal information for former and current U.S. government employees.

How it happened: Attackers suspected to be from the Chinese government stole login information from the employee of a third-party government contractor.

Aftermath: OPM Director Katherine Archuleta resigned, and the agency suspended its background check system until further notice.




About Rebati Adhikari

Rebati holds Bachelor's Degree in Journalism and Mass Communication from Tribhuvan University, Nepal also works in Lakshya Nepal as Social Media Analyst, was Radio Jockey in Times FM.

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