FOLLOW US

Mon

April 5, 2026

Financial Investigations October 15, 2020 5 mins read

The Ten Worst Corporate Cyberattacks of All-Time

Financial Investigations ı By Jackie Allen

2,525 0 Comments

There have been dramatic increases in cyber attacks so far this 2020. Public entities, universities, and businesses are being hacked on a near-daily basis. Since 2010, there have been corporate cyberattacks and data breaches that affected hundreds of millions of people. 

This year, ransomware accounts for over one-third of all cyber attacks. Malicious threat actors are taking advantage of the COVID-19 pandemic as organizations reconfigure staffing and supply chains and offer more digital experiences. 

Cyberattacks have evolved into a multi-billion dollar business with international law enforcement agencies involved. There is no doubt that some of the worst hack attacks have been occurring this year. But major data breaches have been happening for years.

Bloomberg has a long list of the worst corporate hacking incidents of all time. Here are the ten worst corporate hacks of all-time:

  • Yahoo!

In 2016, Yahoo finally confirmed that in August 2013, they had been hacked for over 3 billion user records. The disclosure of the security breach was revealed when they were announcing the 2014 data theft of 500,000,000 records. With a cyberattack on Yahoo! Japan where the company lost 22,000,000 records Yahoo became the most hacked company in the world. In 2018, the company agreed to pay $50 million in damages and nd provide a two-year free credit monitoring service to people whose personal data were stolen during a massive data breach.

  • Marriott International

In March 2020, Marriott International announced that  "an unexpected amount of guest information may have been accessed using the login credentials of two employees at a franchise property." That data breach included information of 5.2 million guests.

Two years ago Marriott released a statement that the hotel chain had received a significant hack. Between 2014-2018, 327 million customer records were taken including over 9 million encrypted payment card numbers, and over 5 million contact information and passport numbers had been breached. 

It had been reported that Chinese hackers suspected to be working for China’s Ministry of State Security were behind the massive cyberattack on Marriott International’s subsidiary.

  • LifeLabs

In December 2019, LifeLabs disclosed an unauthorized breach of its computer systems containing customers' private information. The cyberattack affected 15 million people- a majority from British Columbia (B.C) and Ontario, Canada. Around 40% of all Canadians had their private medical data stolen. A class-action lawsuit was filed against the company following the hack. The plaintiffs alleged that “the data in question was stored on unsecured servers and not encrypted.” 

  • NASDAQ 

From 2006 to 2012, hackers breached the NASDAQ and stole over 161 million credit and debit card numbers. The cost to the companies affected by the hack was $300 million. In 2013, federal prosecutors filed charges against a gang of Russian and Ukrainian hackers for committing the crime. 

  • eBay

In  2014, cyber thieves compromised 145 million eBay buyer and seller accounts. There were class-action lawsuits filed against the company, as a result.  It cost the company over $200 million in fees. 

  • JP Morgan/Chase Bank

In  2014, hackers breached Chase Bank and gained access to 83 million personal and small business accounts. Although the Federal Bureau of Investigation (FBI) suspected a Russian hacker group for the theft, they were never charged.

  • Equifax

In  2017, Equifax, the multinational consumer credit reporting company suffered a massive data breach in which 15.2 million U.K. customer accounts and 145.5 million U.S. consumer accounts were compromised. The company agreed to pay $700 million to settle a nationwide complaint against it related to the cyberattack.

  • Cognizant 

New Jersey-based Cognizant, is one of the top CRN solution providers in the world.

123

Previous Article

Bilzerian alludes to Uber unprofitability before as a parallel to counter bankruptcy rumors about Ignite

Read More
Jackie Allen
3078 Posts

Jackie Allen

Jackie is a freelance journalist and technology geek. She worked as a telecom project director for AT&T and BellSouth. Before joining the USA Herald she has written books, articles, blogs and whitepapers. Her clients include Samsung and other technology companies.

Don’t Miss It
Arizona January 11, 2025
Kelly Warner Law Firm Blames USA Herald for Arizona Bar Investigation

In what appears as a desperate attempt to defend multiple allegations of fraud on the courts, the Kelly Warner Law…

By – USA Herald
Arizona January 4, 2025
Aaron Kelly Law Firm Resorts To Attacking Former Client Again On KellyWarnerLaw.com – Pattern Recognized

Attorney Aaron Kelly and his law partner Daniel Warner are currently under investigation by the Arizona Bar for legal misconduct.…

By – Jeff Watterson
Arizona December 12, 2024
Arizona Bar Opens Investigation on Attorney Aaron Kelly

USA Herald recently reported on a developing story involving Attorneys Daniel Warner and Aaron Kelly. Both Warner and Kelly have…

By – Paul O'Neal
America April 3, 2026
Artemis II Clears Earth Orbit, Heads Toward Moon’s Far Side

The Artemis II crew has officially departed Earth’s orbit, propelling the Orion spacecraft on its journey toward the Moon. The…

By – Tyler Brooks
America April 3, 2026
Former DeRidder Mayor’s Sentencing Rescheduled for June

DE RIDDER, La. — The sentencing of former DeRidder mayor and registered sex offender Misty Roberts has been postponed to…

By – Tyler Brooks
America April 3, 2026
Javon Vital Commits to USC Football Program

Lake Charles College Prep standout Javon Vital, one of Southwest Louisiana’s most versatile athletes, pledged his future to the University…

By – Tyler Brooks
America April 3, 2026
Bill Could Expand Early Release for Terminally Ill Inmates to 120 Days

A Louisiana House committee voted unanimously Tuesday to advance legislation that would extend the early-release window for terminally ill inmates…

By – Tyler Brooks
America April 3, 2026
Teacher Protection Bill Advances Unopposed in House Committee

A proposal designed to safeguard teachers from student violence is gaining momentum after clearing a House committee without objection. House…

By – Tyler Brooks
America April 3, 2026
US Intel Finds Iran Retains Key Strike Capabilities Despite Weeks of Attacks

Recent U.S. intelligence assessments indicate that Iran continues to possess a substantial capacity to launch missiles and deploy drones, even…

By – Tyler Brooks
America April 3, 2026
US Intel Finds Iran Retains Key Strike Capabilities Despite Weeks of Attacks

Recent U.S. intelligence assessments indicate that Iran continues to possess a substantial capacity to launch missiles and deploy drones, even…

By – Tyler Brooks
America April 3, 2026
Trump Tariffs Reshape Global Trade One Year Later

One year after U.S. President Donald Trump launched sweeping tariffs, the global economic landscape shows significant shifts, with trade patterns…

By – Tyler Brooks
America April 3, 2026
Oil Surges, Global Stocks Slip After Trump Renews Iran Strike Threats

Oil prices climbed sharply once again after U.S. President Donald Trump renewed warnings of intensified military action against Iran, offering…

By – Tyler Brooks
America April 3, 2026
Judge Dismisses Majority of Claims In Lively Harassment Suit Against Baldoni

A federal judge has dismissed most claims brought by actress Blake Lively in her sexual harassment lawsuit against her It…

By – Tyler Brooks
America April 3, 2026
Trump Ousts Attorney General Pam Bondi, Cites Private Sector Transition

US President Donald Trump has dismissed Attorney General Pam Bondi, a close ally and staunch defender of his administration, ending…

By – Tyler Brooks
America April 2, 2026
Trump Targets State Farm As California Wildfire Fallout Exposes Deeper Insurance Crisis

INSIDE THIS REPORT A presidential warning shot has been fired at one of America’s largest insurers—but the implications extend far…

By – Samuel Lopez
America April 2, 2026
Coral Springs Vice Mayor Found Dead, Husband Arrested

Authorities in Florida announced the shocking death of Nancy Metayer Bowen, the vice mayor of Coral Springs, whose husband has…

By – Rihem Akkouche
America April 2, 2026
Magnitude 4.6 Earthquake Strikes Near Boulder Creek, Shakes Bay Area

A 4.6 earthquake near Boulder Creek rattled Santa Cruz County early Thursday, sending tremors across the Bay Area and reigniting…

By – Rihem Akkouche
America March 28, 2026
Goliath Ventures Filed for Chapter 11 as Alleged $328M Crypto Scheme Unravels

A Florida crypto firm once promising sky-high returns has collapsed under the weight of federal scrutiny and investor outrage. Goliath…

By – Rihem Akkouche
America March 27, 2026
Ohio State Suspends Fraternity After Student Hospitalization

The case now drawing attention under the headline Ohio State suspends Fraternity has cast a spotlight on campus safety, as…

By – Rachel Moore
America March 27, 2026
Senate Vote on DHS Shutdown Ends Weeks-Long Standoff

The Senate vote on DHS shutdown unfolded in the early hours of Friday, bringing a dramatic pause to a 42-day…

By – Rihem Akkouche
America March 25, 2026
7 Year-Old Girl Dies in Modesto Duplex Fire, Family Devastated

The 7 year-old girl dies in Modesto duplex fire tragedy has left a California community reeling after flames tore through…

By – Rachel Moore
America March 28, 2026
Mike Fincke Space Medical Incident Stuns NASA as Mystery Illness Strikes in Orbit

A routine evening aboard the International Space Station turned into a moment of high-stakes uncertainty when the Mike Fincke space…

By – Rihem Akkouche
America March 15, 2026
Arizona Man Accused of Crucifying Pastor Pushes Judge For A Quick Death Sentence

By Samuel A. Lopez | USA Herald – An Arizona courtroom is now the center of a deeply disturbing case…

By – Samuel Lopez
America March 11, 2026
Trump’s Laser Talk Sparks New Questions About America’s Secret Arsenal

President Donald Trump has once again done what he often does best in moments of war and tension: he dropped…

By – Samuel Lopez
America March 8, 2026
The Northern Lights Return

The Northern Lights have a chance to be visible from several northern U.S. states on Tuesday night, forecasters at the…

By – Jackie Allen
America March 8, 2026
February Unemployment Up as Job Losses Surprise Economists

February Unemployment Up as the latest labor market data revealed weaker-than-expected job growth and a slight increase in the national…

By – Jackie Allen
America March 8, 2026
Late-Night Attack by Venezuelan National at Florida Beach

A Late-night attack by a Venezuelan National has left a Florida community shaken after authorities say a 26-year-old man ambushed…

By – Jackie Allen
America April 2, 2026
Trump Targets State Farm As California Wildfire Fallout Exposes Deeper Insurance Crisis

INSIDE THIS REPORT A presidential warning shot has been fired at one of America’s largest insurers—but the implications extend far…

By – Samuel Lopez
America April 2, 2026
Tennessee Congressman Warns Classified UAP Briefings Would Shake Public Faith In Government

Rep. Tim Burchett says he has been briefed by intelligence agencies on information so sensitive it would leave Americans “unglued”…

By – Samuel Lopez
America April 2, 2026
The Persuasion Machine Inside AI How New Research Reveals A Quiet Trade-Off Between Influence And Truth

INSIDE THIS REPORT A massive multi-institution study has uncovered something far more concerning than AI bias—it has identified how easily…

By – Samuel Lopez
America April 2, 2026
Market Analysis: Strait of Hormuz Tensions Are Quietly Straining the U.S. Insurance Market — And the Pressure Is Building

INSIDE THIS REPORT A narrow shipping lane in the Middle East is beginning to reshape risk calculations inside the American…

By – Samuel Lopez
America April 2, 2026
Is X down? Thousands of Users Report Access Problems

Thousands of users experienced disruptions on Tuesday afternoon when X, the social media platform owned by Elon Musk, suffered a…

By – Tyler Brooks
America April 2, 2026
Trump Threatens NATO Exit, Tells Europe to ‘Go Get Your Own Oil’

President Donald Trump intensified his criticism of European allies this week, warning that the United States could abandon long-standing security…

By – Tyler Brooks
America April 1, 2026
HUMANITY RETURNS TO THE MOON: NASA’s Artemis II Lifts Off — First Crewed Lunar Mission In 53 Years

WHAT MATTERS NOW Four astronauts are en route to the Moon for the first time since 1972. History is being…

By – Samuel Lopez
America March 31, 2026
Health Insurers 19% Claims Refusal Raises Alarm Across ACA Marketplace

A new analysis reveals a striking reality: health insurers 19% claims refusal has become a defining feature of coverage on…

By – Rachel Moore
America March 31, 2026
Hospitals Threatened by Medicaid Cuts Face Growing Crisis Nationwide

A sweeping new analysis warns that hospitals threatened by Medicaid cuts are edging toward a breaking point, with hundreds of…

By – Rachel Moore
America March 31, 2026
Isometric Workouts Gain Attention as Time-Efficient Path to Better Health

For many people, fitness conjures images of long hours spent running on treadmills, powering through burpees or lifting heavy weights.…

By – Tyler Brooks
America March 30, 2026
How Much Screen Time Is Safe for Kids Under Five?

New government guidance recommends that children under five should spend no more than one hour a day on screens, while…

By – Tyler Brooks
America March 27, 2026
New Therapies Offer Hope for Lasting Relief From Hay Fever

A new generation of treatments is renewing hopes that seasonal allergies could one day be controlled at their source, rather…

By – Tyler Brooks
America April 2, 2026
Judge Allows Tiger Woods to Travel Abroad for Medical Treatment

A judge in Florida on Wednesday approved a request from Tiger Woods to leave the United States and seek care…

By – Tyler Brooks
International April 1, 2026
Italy Misses Third Consecutive World Cup After Shootout Loss to Bosnia-Herzegovina

Italy, four-time World Cup champions, will not feature at this year’s tournament after a heartbreaking penalty shootout defeat to Bosnia-Herzegovina,…

By – Tyler Brooks
America March 28, 2026
Men’s March Madness Elite 8 Delivers High-Stakes Drama as Title Race Tightens

The madness is reaching its boiling point. The Men’s March Madness Elite 8 has arrived, trimming the 2026 NCAA Tournament…

By – Rihem Akkouche
America March 12, 2026
The World Cup Security Reckoning: Trump Warns Iran Soccer Team About Safety As War Tensions Spill Into Global Sports

By Samuel A. Lopez | USA Herald – A short Truth-Social post from President Donald Trump on Thursday morning is now…

By – Samuel Lopez
America March 8, 2026
Late-Night Attack by Venezuelan National at Florida Beach

A Late-night attack by a Venezuelan National has left a Florida community shaken after authorities say a 26-year-old man ambushed…

By – Jackie Allen
America March 8, 2026
Trump’s War in Iran: Congress Confronts Escalation After U.S. Strikes

Trump’s War in Iran  was triggered open conflict, casualties, and renewed constitutional debate in Washington. The crisis intensified following reports…

By – Jackie Allen

No posts found.

No posts found.

No comments No comments yet. Be the first to comment!

Signup for the USA Herald
exclusive Newsletter