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These are the worst hacks, cyberattacks, and data breaches of 2019

What happens after a data breach in a major company? Nothing good, says Wall Street
The stock market does not take cybersecurity incidents kindly, it seems.

The blight of cyberattacks, criminal hacking groups, and data breaches is not going away anytime soon.

For the past few years, there has been a constant stream of data breaches that have hit the headlines, ranging from the theft of medical information, account credentials, corporate emails, and internal sensitive enterprise data. 

When a data breach occurs, companies will usually haul in third-party investigators, notify regulators, promise to do better and give any impacted consumers free credit monitoring — but we’ve reached a stage where you should consider signing up to such services anyway, given how much of our information is now available in data dumps strewn all over the internet. (Consider using Have I Been Pwned to check if you’ve been involved in a breach.)

The reasons a cyberattack or data breach occur vary. In some cases, such as Equifax, the failure to patch a known vulnerability that has the potential to impact software or libraries in use — and in a reasonable timeframe — has serious repercussions. 

In others, unsecured databases left exposed to the internet may be the problem, zero-day vulnerabilities may be exploited in the wild before fixes are available, or in some of the worst cases, an organization or individual may be targeted by state-sponsored advanced persistent threat (APT) groups with substantial resources and tools at their disposal. 

According to IBM’s latest annual Cost of a Data Breach study, the average data breach now costs up to $3.92 million when you take into account notification costs, expenses associated with investigation, damage control, and repairs, as well as regulatory fines and lawsuits. These costs have increased by 12% over the past five years. 

The long-term damage of a security incident may not be so apparent. Wall Street does not look upon them kindly and the public disclosure of a data breach can lead to the average share price of a company falling by 7.27% on disclosure, with low share value and growth underperformance a reality for years afterward. 

FireEye estimates that under half of organizations are ready to face a cyberattack or data breach. 

Below, we take a look at the most interesting and largest data breaches, hacks, and cyberattacks that have taken place over 2019. 

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January:

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July:

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September:

October:

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November:




























December:

Previous and related coverage


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Article source: https://www.zdnet.com/article/these-are-the-worst-hacks-cyberattacks-and-data-breaches-of-2019/#ftag=RSSbaffb68