List of data breaches and cyber attacks in November 2021 – 223.6 million records breached

In November, we discovered 81 publicly disclosed cyber security incidents, accounting for 223,615,390 breached records.

With one month left in 2021, the annual total running total of compromised records is to just shy of 5 billion.

Keep an eye out for our end-of-year report in the next few weeks, where we’ll break down the findings of these lists – or subscribe to our Weekly Round-up to get the latest news sent straight to your inbox.

In the meantime, you can find the full list of security incidents below, with those affecting UK organisations listed in bold.



Cyber attacks


If you find yourself facing a cyber security disaster, IT Governance is here to help. Our Cyber Incident Response service provides the help you need to deal with the threat, as our experts guide you through the recovery process.

They’ll review the breach, mitigate the damage and ensure that you are up and running again as soon as possible.


Ransomware



Data breaches


Financial information


Malicious insiders and miscellaneous incidents


In other news…

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