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Biggest, Worst Personal Data Leaks of 2019

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Last year, hackers didn’t just hack — they also collected billion-account databases from breaches and leaks that had occurred years ago, only to sell them for profit.

Biggest, Worst Personal Data Leaks of 2019

However, eight breaches were really shocking and affected millions of people worldwide, according to https://nordpass.com

“With so many breaches and leaks in 2019, it’s possible that your email address or other details ended up in the wrong hands. You can check whether your email was in one of the databases by going to Have I Been Pwned,” said Daniel Markuson, a digital privacy expert at NordVPN.

“You can also check whether your password has leaked and might be used in a credential stuffing attack by visiting NordPass and checking if your password is secure.”

American Medical Collection Agency (11.9 million + 7.7 million). This breach affected not one but two lab testing companies.

First, Quest Diagnostics was notified that someone had unauthorized access to AMCA’s databases for eight months.

The hack affected almost 12 million of their customers. Hackers got access to very personal information such as credit card numbers, bank account information, medical information, and Social Security numbers.

Then there was LabCorp, another company whose customers were affected by this breach. Almost 8 million customers’ personal and financial data was compromised.

Suprema (27.8 million). This security loophole left 27.8 million people’s biometric data exposed. Suprema is a security company responsible for the web-based Biostar 2 biometrics lock system.

The system is used by almost 6,000 organizations in 83 countries, including governments and banks. Biostar uses fingerprints and facial recognition to allow employees into restricted buildings and areas.

Security researchers from VPNmentor found that the Biostar database was left unprotected and largely unencrypted. Worst of all, they got access to tons of sensitive information.

Houzz (48.9 million). Houzz, a home design website, started the year announcing a breach in which hackers got unauthorized access to its customers’ publicly available information, as well as usernames and encrypted passwords.

The company noticed the breach at the end of 2018 and was pretty vague about it in their public statements. However, ITRC reported that the hack affected almost 49 million Houzz customers.

Capital One (106 million). In July, Capital One announced that they suffered a massive data breach affecting 100 million Americans and 6 million Canadians.

The hacker accessed credit card applications made between 2005 and 2019. They contained personal data including names, home addresses, email addresses, dates of birth, etc.

What makes this one of the worst breaches of 2019 is that some bank numbers and social security numbers also ended up in the hands of the hacker.

Zynga (218 million). If you’ve ever played online games such as “Words with Friends” or “Draw Something,” you should be worried because their creator, Zynga, was breached in 2019.

The hack affected a whopping 218 million users. Bad actors accessed log-in credentials, usernames, email addresses, some Facebook IDs, some phone numbers, and Zynga account IDs.

Facebook (419 million). A security researcher at the GDI Foundation found an unprotected server with a database containing approximately 419 million phone numbers belonging to Facebook users.

The database was available to anyone, and it also included Facebook IDs, which makes finding user’s names and personal details even easier.

The owner of the server wasn’t found, but the database was taken down shortly after it was discovered.

Collection by Gnosticplayers (1 billion+). This isn’t a breach per se as much as it is a collection of breaches affecting more than 1 billion internet users.

A hacker who calls himself Gnosticplayers collected databases from 45 companies and put them up for sale on the dark web.

These batches contained data such as users’ full names, email addresses, passwords, location data, and social media account information.

The companies whose data was released includes Dubsmash (162 million), MyFitnessPal (151 million), MyHeritage (92 million), ShareThis (41 million), Animoto (25 million), 500px (15 million), CoffeeMeetsBagel (6 million), and more.

Collections #1-5 (3 billion). Collections #1-5 were probably the biggest leaks of 2019. They contained usernames and passwords collected over many years of breaches.

These batches appeared on hacking forums and were noticed by security researcher Troy Hunt, who identified the link between them all and informed the public.

The first batch was released in January and contained the data of 770 million people. Then, a few weeks later, Collections #2-5 appeared on the internet.

They contained 25 billion unique records and roughly 2.2 billion unique usernames and passwords, making this one of the most significant leaks to date.

For more go to https://nordpass.com.


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Data Privacy Ignorance Threatens National Security –  DKIPPI 

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Data Knowledge and Information Privacy Protection Initiative (DKIPPI) has warned that widespread ignorance of data privacy practices is exposing Nigeria to serious national security and economic risks amid a rise in ransomware attacks.

Data Privacy Ignorance Threatens National Security -  DKIPPI 

Tokunbo Smith, president of DKIPPI, warned on Tuesday in Lagos, that  the increasing frequency of ransomware incidents underscores the dangers of weak data protection systems across organisations and institutions.

He described ransomware attacks as a growing threat in which hackers infiltrate systems, demand payments and threaten to leak sensitive data.

Mr Smith said, “The cost of ignorance in data privacy is not just what you lose. It is what you expose. Data privacy has evolved beyond a technical concern to a critical governance and national development issue requiring urgent attention. Ransomware is no longer just cybercrime; it is economic warfare and a governance issue.”

Mr Smith urged both public and private sector leaders to adopt proactive and comprehensive data protection frameworks to safeguard sensitive information and strengthen institutional resilience.

He also called on government at all levels to go beyond punitive responses and implement stronger regulations, enforcement mechanisms, and national cyber resilience strategies.

According to him, DKIPPI will soon release a policy advocacy paper outlining the key risks associated with poor data protection practices.

He said the paper would highlight financial losses, institutional inefficiencies, and threats to national security, while recommending urgent reforms to procurement processes, compliance systems, and governance structures.

Mr Smith added that addressing data privacy gaps was critical to protecting Nigeria’s digital economy and restoring trust in its institutions.

 

 


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Angst as FG Drops $32.8m Fine on Meta for Data Breach

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Decision to cancel the $32.8 million fine previously imposed on Meta for alleged data privacy violations was taken as far back as October 30, 2025.

Angst as FG Drops $32.8m Fine on Meta for Data Breach

The development has raised concerns over the country’s approach to data protection enforcement and regulatory transparency.

This followed a confidential, out-of-court settlement singed by Nigerian Data Protection Commission (NDPC) with Meta, effectively waiving the fine imposed earlier that year.

This deal, sanctioned by a Federal High Court, resolved disputes over behavioural advertising and user data transfers without Meta paying the penalty.

Recall that the NDPC claimed that it launched investigation in September 2023 that examined Meta’s handling of personal data from more than 60 million Nigerian users.

The NDPC had accused Meta of several breaches, including the absence of explicit consent for behavioural advertising, unauthorised cross-border data transfers, the collection of data from non-users, and the deployment of algorithms that could expose users to financial and health risks.

At the time, the regulator described the penalty as part of efforts to strengthen digital rights protections in Africa’s most populous country, aligning Nigeria with global enforcement trends in the United States, United Kingdom, and European Union, where Meta and other major technology firms have faced multibillion-dollar fines for similar violations.

However, documents from a subsequent settlement indicate that Nigeria reversed its position in October 2025.

Under the agreement, Meta was absolved of the $32.8 million penalty and required only to cover legal fees incurred by the government during court proceedings challenging the NDPC’s final orders.

The settlement was signed on 30 October 2025 and later validated by the Federal High Court in Abuja on 3 November 2025.

Despite this judicial confirmation, the terms of the agreement were not made public at the time, and only recently emerged through disclosed documentation.

The development has triggered questions about transparency in regulatory enforcement, particularly given the scale of the initial allegations and the number of affected users.

Iliya-Ezekiel Ndatse, data protection lawyer, said the outcome weakens regulatory deterrence.

“Removing penalties after such findings reduces the effectiveness of enforcement actions and weakens the credibility of compliance obligations,” he noted.

The case has also drawn comparisons with Nigeria’s previous dispute involving Twitter, now rebranded as X, which was banned in 2021 before the two parties reached a negotiated resolution.

 


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Kaspersky Discovers Vulnerability in Qualcomm Snapdragon Chips that can Lead to Data Loss & Device Compromise

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Kaspersky ICS CERT discovered a hardware-level vulnerability affecting Qualcomm chipsets that are widely used in a range of consumer and industrial devices, including smartphones and tablets, car components, IoT devices and more.

The vulnerability resides in the BootROM – firmware embedded at the hardware level. Attackers could potentially get access to any data stored on the device or device sensors like camera and microphone, implement complicated attack scenarios and in some circumstances get full control of the device. The results of the research were presented at Black Hat Asia 2026.

The vulnerability affects Qualcomm MDM9x07, MDM9x45, MDM9x65, MSM8909, MSM8916, MSM8952 and SDX50 series and was reported to Qualcomm in March 2025. Qualcomm formally acknowledged the vulnerability in April 2025. It has been assigned a CVE-2026-25262. Other Qualcomm-based chips may be affected as well.

Kaspersky researchers explored the Sahara protocol, a low-level communication system used when a Qualcomm chip enters Emergency Download Mode (EDL) – a special recovery mode designed for repairing or restoring smartphones or other devices. Sahara acts as the first step that allows a computer to connect to the device and load software before the operating system on the device starts.

Kaspersky demonstrated that a security flaw in this process could allow an attacker with physical access to the target device to bypass key security protections in the chip, compromise the secure boot chain and, in some cases, deploy malicious applications and backdoors to the chip’s Application Processor, thus fully compromising the entire device.

For example, in cases when the target device is a smartphone or a tablet, the attacker can potentially get access to entered user passwords, and subsequently this opens further access to multiple types of sensitive user data, such as files, contacts, location, access to the devices’ camera and microphone, etc.

A potential attacker only needs a few minutes of physical access to a device to compromise it. Therefore, if a smartphone has been sent for repair or left unattended for a short time, one can no longer be sure it is not infected. Researchers warn that the threat extends beyond end-user scenarios to include potential compromise during the supply chain phase.

“Vulnerabilities like this may allow attackers to deploy malware that is difficult to detect and remove. In practice, this could enable covert data collection or influence device behaviour over extended periods of time.

“While a reboot might seem like an effective way to remove such malware, it cannot always be relied upon: compromised systems may simulate a reboot without actually resetting. In such cases, only a complete loss of power – including battery depletion – guarantees a clean restart,” comments Sergey Anufrienko, security expert at Kaspersky ICS CERT.

Kaspersky advises organisations and individual users to exercise strict physical security control over devices including at the supply, maintenance and decommissioning phases. A reboot of the device by cutting off the power supply to the affected chip (if available) or full battery discharge may help to get rid of the malware if it was installed.


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