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Data Breach Numbers, Costs and Impacts All Rise in 2021

Lohrman on Security

By almost any measure, the breadth, depth and impact of data breaches have dramatically increased during the COVID-19 pandemic. Here’s a roundup of the numbers.

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GUEST ESSAY: Data breaches across the globe slowed significantly in Q4 2021 versus Q1-Q3

The Last Watchdog

After a gloomy start with its first three breach intensive quarters, 2021 has finally ended, and on a positive note. Related: Cybersecurity experts reflect on 2021. Our analysis looked into data breaches that occurred from October to December 2021 (Q4) and compared them with the numbers from July through August 2021 (Q3).

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Luxottica confirms 2021 data breach after info of 70M leaks online

Bleeping Computer

Luxottica has confirmed one of its partners suffered a data breach in 2021 that exposed the personal information of 70 million customers after a database was posted this month for free on hacking forums. [.]

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Worst Healthcare Data Breaches of 2021

Security Boulevard

The post Worst Healthcare Data Breaches of 2021 appeared first on Sonrai Security. The post Worst Healthcare Data Breaches of 2021 appeared first on Security Boulevard. Healthcare is a highly sensitive and heavily regulated industry.

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Inside the Massive Alleged AT&T Data Breach

Troy Hunt

But I have proven, with sufficient confidence, that the data is real and the impact is significant. Whilst I did this in that handful of aforementioned cases as part of the breach verification process, this is something that happens entirely manually and is infeasible en mass.

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AT&T confirmed that a data breach impacted 73 million customers

Security Affairs

AT&T confirmed that a data breach impacted 73 million current and former customers after its data were leaked on a cybercrime forum. In March 2024, more than 70,000,000 records from an unspecified division of AT&T were leaked onto Breached forum, vx-underground researchers reported. It was leaked online today.”

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Details of T-Mobile December 2021 Data Breach

CyberSecurity Insiders

T Mobile that suffered a massive data breach in August this year has again fallen prey to a similar hack in December 2021 that saw information leak of a small set of the telecom company customers. T-Mobile is yet to acknowledge the data breach on an official note.