List of data breaches and cyber attacks in October 2019 – 421 million records breached

In a month where security experts across Europe were boosting awareness of cyber security, organisations had mixed results in their own data protection practices.

On the one hand, the 421,103,896 data records that were confirmed to have been breached in October represents about 50% of the monthly average.

But on the other hand, there were a staggering 111 incidents, including several in which sensitive and financial information was compromised.

It was also a particularly bad month for the UK, with 9 confirmed breaches. As we have been doing for the past few months, we’ve listed UK-specific incidents in bold.

Cyber attacks



ransomware stat


Data breaches

Financial information


data breach stat


Malicious insiders and miscellaneous incidents

In other news…


Keep up to date with the latest data breaches and cyber security news by subscribing to our newsletter.

Sign up now >>

One Response

  1. Deepti Kushwaha 1st November 2019