Proving a Negative How do you prove a negative in cybersecurity? How do you prove that you weren’t attacked, or that there is no intruder in your network? These are questions that security teams have been forced to ask for a while, but there is a new question that is becoming increasingly common: How do you prove that files weren’t stolen from your network? Or, even more of a challenge, how do you prove that files weren’t stolen from your partners, vendors, or their partners or vendors? This is a surprisingly challenging question to answer. Finding the answer is also more difficult because data governance has not been the traditional purview of security teams. Data governance has long been thought of as a compliance problem, unfortunately that is no longer the case. Security teams are now, whether they want to be or not, need to consider data governance. This means they have to be able to confidently say whether leaked data is real or not. How do you do that? History of Ransomware What we call ransomware has evolved over the years. Ransomware has gone from largely focused on encryption to a combination of encryption and data theft to today’s reality where data theft alone is the most common version of a “ransomware” attack. Threat actors have figured out that managing encryption keys is challenging, stealing data and holding it hostage is significantly easier. They’ve also figured out that stealing the right data can be just as profitable as encryption and, as we’ve seen from ransomware trends, switching to data theft only allows groups to accelerate the number of attacks. Compare the number of victims from 2024 to 2025 in the Recorded Future® Ransomware dashboard with a noticeable rise in ransomware trends. Figure 1: Rise in ransomware trends increasing from 2024 to 2025 (Source: Recorded Future)