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security “We wait, because we know you.” Inside the ransomware negotiation economics.

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“We wait, because we know you.”
Inside the ransomware negotiation economics.


Pepijn Hack, Cybersecurity Analyst, Fox-IT, part of NCC Group
Zong-Yu Wu, Threat Analyst, Fox-IT, part of NCC Group


Abstract

Organizations worldwide continue to face waves of digital extortion in the form of targeted ransomware. Digital extortion is now classified as the most prominent form of cybercrime and the most devastating and pervasive threat to functioning IT environments. Currently, research on targeted ransomware activity primarily looks at how these attacks are carried out from a technical perspective. However, little research has focused on the economics behind digital extortions and digital extortion negotiation strategies using empirical methods.

This research paper explores three main topics. First, can we explain how adversaries use economic models to maximize their profits? Second, what does this tell us about the position of the victim during the negotiation phase? And third, what strategies can ransomware victims leverage to even the playing field?

To answer these questions, over seven hundred attacker-victim negotiations, between 2019 and 2020, were collected and bundled into a dataset. This dataset was subsequently analysed using both quantitative and qualitative methods. Analysis of the final ransom agreement reveals that adversaries already know how much victims will end up paying, before the negotiations have even started.

Each ransomware gang has created their own negotiation and pricing strategies meant to maximize their profits. We provide multiple (counter-)strategies which can be used by the victims to obtain a more favourable outcome. These strategies are developed from negotiation failures and successes derived from the cases we have analysed, and are accompanied by examples and quotes from actual conversations between ransomware gangs and their victims.

When a ransomware attack hits a company, they find themselves in the middle of an unknown situation. One thing that makes those more manageable is to have as much information as possible. We aim to provide victims with some practical tips they can use when they find themselves in the middle of that crisis.

Read more:

https://research.nccgroup.com/2021/...-inside-the-ransomware-negotiation-economics/
 
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