Wednesday, April 2, 2025

The most important knowledge breaches in 2024: 1B stolen information and rising

As the first half of 2024 draws to a close, we’re witnessing an unprecedented surge in devastating data breaches, with several high-profile incidents already making headlines. But just when you think that a few of these hackers can’t possibly sink any lower, they surprise you by doing exactly that.

In a year marked by alarming data compromises, the sheer scale of cybersecurity breaches has reached unprecedented heights. At least 1 billion records compromised, with numbers still climbing, as online platforms and medical databases suffer from devastating hacks, leaving shoppers’ personal info and sensitive medical knowledge vulnerable to exploitation. These data breaches not only compromise the privacy of individuals whose sensitive information is exposed, but also empower criminals to continue perpetuating their malicious cyberattacks for financial gain.

Let’s relive the most significant safety incidents of 2024 and examine their impact, as well as explore opportunities for prevention. 

Thriller AT&T knowledge leak uncovered 73 million buyer accounts

Some three years after a hacker teased a broadcast pattern of allegedly stolen AT&T buyer knowledge, a knowledge breach dealer in March dumped the complete cache of 73 million buyer information on-line to a recognized cybercrime discussion board for anybody to see. The printed report unfortunately contained sensitive client information, such as names, phone numbers, and mailing addresses, along with. 

Nevertheless it wasn’t till a safety researcher found that the uncovered knowledge contained encrypted passcodes used for accessing a buyer’s AT&T account that the telecoms large took motion. The safety researcher instructed TechCrunch on the time that the encrypted passcodes may very well be simply unscrambled, placing some 7.6 million current AT&T buyer accounts susceptible to hijacks. Following TechCrunch’s notification of the researcher’s discovery to the corporation. 

One massive thriller stays: AT&T nonetheless . 

Hackers breach Change Healthcare database, exposing sensitive medical data on a substantial portion of Americans.

In 2022, the U.S. The Justice Department has filed a lawsuit against UnitedHealth Group, seeking to block the company’s attempted acquisition of healthcare technology provider Change Healthcare, citing concerns that the deal could give UnitedHealth “control over approximately half of all Americans’ medical insurance claims annually”. The attempt to scuttle the agreement ultimately proved unsuccessful. Two years into the ordeal, an even more calamitous event transpired: the theft of highly sensitive health data from the company’s systems by a notorious ransomware gang.

The relentless disruption caused by the cyberattack persisted for weeks, crippling healthcare systems across the United States, from hospitals to pharmacies and medical practices nationwide? The full extent of the information breach’s aftermath remains unclear, but its irreparable impact on those affected is already starkly apparent. UnitedHealthGroup revealed that a stolen database contains sensitive, non-public information related to medical and billing records in the United States, potentially compromising the personal data of thousands of patients. 

UnitedHealth has yet to quantify the extent of the breach’s impact on the number of people affected. The CEO of Wellbeing Large, Andrew Witney, advised lawmakers that more funds were needed to address the issue. At present, there is a pressing concern involving tens of thousands of people in the United States. are affected. 

A devastating cyberattack struck multiple hospitals across London, leaving a trail of disruption and chaos in its wake as the Synnovis ransomware wreaked havoc on critical healthcare systems. 

A June cyberattack on U.Okay. Pathology lab Synovis is a leading provider of blood and tissue testing services to hospitals and wellbeing organizations across the UK. The global COVID-19 pandemic triggered prolonged and far-reaching disruptions to businesses across various industries, leading to significant challenges for many organizations over an extended period of time. Thousands of operations and procedures were postponed by the National Health Service’s (NHS) dependent laboratories after a hack, leading to the declaration of a major incident across the UK? well being sector.

A Russian-based ransomware group was identified as responsible for the cyberattack, which had been brewing for an “extended period” of time. Following a data breach akin to that at Change Healthcare, the consequences for those impacted will be profound and potentially long-lasting. 

The cyberattackers attempted to coerce the laboratory by posting sensitive information online and demanding payment in exchange for its removal. Synnovis reportedly thwarted the hacking attempt by preventing the gang from profiting from the breach, but inadvertently allowed thousands of sensitive health records to be leaked online. 

One UK-based NHS trust, operating five hospitals across London, was impacted by a series of outages necessitated by regulatory requirements in the country. Within a span of years preceding the June cyberattack on Synnovis, our well-being services operated efficiently.

The Ticketmaster breach was reportedly linked to a larger attack on Snowflake, with over 280 million records compromised.

The rapid succession of cloud-based data heists on Snowflake ultimately snowballed into one of the year’s most significant breaches, driven by the staggering amount of sensitive information pilfered from its corporate client base. 

Hackers stole hundreds of thousands of customer records from some of the world’s biggest companies, including JPMorgan Chase, Home Depot, and Saks Fifth Avenue, by exploiting employees with access to their employers’ Snowflake data systems. While Snowflake does not mandate nor integrate a security feature for its users, it does not provide protection against intrusion threats relying on compromised or recycled login credentials during its usage period. 

Mandiant, an incident response agency, reported that in some cases, a significant amount of customer data was accessed. Only a small handful of the 165 affected companies have confirmed that their environments were compromised, which also includes tens of thousands of employee records from [companies redacted]. Anticipate a large number of Snowflake clients to return early. 

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