![]() ![]() The average stock price loss for affected companies has been 7.5%, which equates to a market cap loss of %5.4 billion.The average cost to companies (in legal fees, penalties, remediation costs, etc.) has been $347 million.The mean number of customers affected by each breach was 257 million.The cost of a massive breachīreaches of this scale have massive effects on customer data, and on victim company’s bottom line, the report said: What’s worse is that the flaw came from a database Dun and Bradstreet inherited when it acquired another company, serving as a warning to companies adding data from outside sources, even if they’re presumably trustworth. Dun and Bradstreetĭata analytics firm Dun and Bradstreet suffered a massive breach in 2017 that exposed customer names, personal and business email addresses, home addresses, job titles and functions, and other data. ![]() Even worse, it took two months for Equifax to catch the breach, which was caused by a flaw in open-source software the company was using. EquifaxĮasily one of the most devastating breaches in the past several years, Equifax’s breach resulted in the theft of customer social security numbers, credit card numbers, names, birth dates, and addresses. The breach was reportedly caused by the cracking of Chegg’s database encryption algorithm. CheggĮducation technology company Chegg had a database exposed in 2018 that allowed attackers to steal millions of customer’s records that contained names, email addresses, shipping addresses, usernames, and passwords. Two bugs found in a privacy tool, and one in Facebook’s video upload software, led to the theft of user names, gender, email addresses, location check ins, and relationship statuses. The root of the September 2018 breach was bad code, the report said. Facebookįacebook’s massive security breach has been well documented. Marriott said it wasn’t sure how the breach occurred, and that it could have begun as far back as 2014. In 2018, Marriott found a security breach in its Starwood Hotel branch that exposed 387 million guest records, including names, birth dates, gender, addresses, and passport numbers. See: How to protect against 10 common browser threats (free PDF) (TechRepublic)Įmployee negligence and internal threats were cited as a leading cause for breaches in general, but large breaches that affect the biggest companies (and their massive customer bases) are coming from external sources, indicating that large enterprises may need to focus their efforts on fighting off predators rather than worrying about disgruntled or untrained employees. The report notes that the largest breaches “were caused by external cyber attacks that leveraged phishing, malware, technical vulnerabilities, and more.” The top 6 enterprise VPN solutions to use in 2023ĮY survey: Tech leaders to invest in AI, 5G, cybersecurity, big data, metaverseĮlectronic data retention policy (TechRepublic Premium)Ĭloud security firm Bitglass released a report detailing the biggest security breaches of the past three years and the fallout that affected companies experienced. (MasterCard, Visa, Discover Financial Services and American Express)ĬareFirst BlueCross Blue Shield - MarylandĬhinese gaming websites (three: Duowan, 7K7K, 178.Google offers certificate in cybersecurity, no dorm room required EntityĬalifornia Department of Child Support Services In 2019, a collection of 2.7 billion identity records, consisting of 774 million unique email addresses and 21 million unique passwords, was posted on the web for sale. As a result of data breaches, it is estimated that in first half of 2018 alone, about 4.5 billion records were exposed. ![]() It is estimated that the average cost of a data breach will be over $150 million by 2020, with the global annual cost forecast to be $2.1 trillion. Most reported breaches are in North America, at least in part because of relatively strict disclosure laws in North American countries. In addition, the various methods used in the breaches are listed, with hacking being the most common. Breaches of large organizations where the number of records is still unknown are also listed. The list includes those involving the theft or compromise of 30,000 or more records, although many smaller breaches occur continually. This is a list of data breaches, using data compiled from various sources, including press reports, government news releases, and mainstream news articles. You can help by adding missing items with reliable sources. This is a dynamic list and may never be able to satisfy particular standards for completeness. ![]()
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