A Cyentia Institute report that focuses on the 100 largest cyber incidents of the past five years found that these events totaled $18 billion in reported losses and 10 billion compromised records.

Interestingly, a single campaign – NotPetya – was responsible for nearly 20 percent of all the financial losses from the events tracked. And one-in-five of the largest losses over the last five years are attributed to state-affiliated actors.

The report on the top cyberattacks released today, the Information Risk Insights Study (IRIS) 20/20 Xtreme, was a follow-on to the Cyentia Institute’s IRIS 20/20 study from earlier this year. Both reports are based on data from insurance data group Advisen.

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