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Tenable Research Reveals Over 40 Billion Records Were Exposed in 2021

January 19, 2022

Columbia, MD

Almost 78% increase on 2020

According to research by Tenable®, the Cyber Exposure company, at least 40,417,167,937* records were exposed worldwide in 2021, calculated by Tenable’s Security Response Team’s analysis of 1,825 breach data incidents publicly disclosed between November 2020 and October 2021. This is a considerable increase on the same period in 2020, which saw 730 publicly disclosed events with just over 22 billion records exposed. This analysis is detailed in Tenable’s 2021 Threat Landscape Retrospective (TLR) report, published today, and includes an overview of the attack path and vulnerabilities threat actors favor, plus insights that will help organizations prepare to face the oncoming challenges in 2022. 

By understanding threat actor behavior, organizations can effectively prioritize security efforts to disrupt attack paths and protect critical systems and assets. Analysis of the events for this report found that many are readily mitigated by patching legacy vulnerabilities and addressing misconfigurations to help limit attack paths. 

  • Ransomware had a monumental impact on organizations in 2021, responsible for approximately 38% of all breaches. 
  • 6% of breaches were the result of unsecured cloud databases. 
  • Unpatched SSL VPNs continue to provide an ideal entry point for attackers to perform cyberespionage, exfiltrate sensitive and proprietary information as well as encrypt networks.
  • Threat groups, particularly ransomware, have increasingly exploited vulnerabilities and misconfigurations in Active Directory.
  • Software libraries and network stacks used commonly amongst OT devices often introduce additional risk when security controls and code audits are not in place.
  • Ransomware groups favored physical supply chain disruption as a tactic to extort payment while cyberespionage campaigns exploited the software supply chain to access sensitive data.
  • Healthcare and education experienced the greatest disruption from data breaches.

“Migration to cloud platforms, reliance on managed service providers, software and infrastructure as a service have all changed how organizations must think about and secure the perimeter,” explains Claire Tills, Senior Research Engineer, Tenable. “Modern security leaders and practitioners must think more holistically about the attack paths that exist within their networks and how they can efficiently disrupt them. By examining threat actor behavior we can understand which attack paths are the most fruitful and leverage these insights to define an effective security strategy. ”

Staying on top of patching assets is difficult enough given the sheer volume of disclosed vulnerabilities, but in 2021 it was even more challenging due to incomplete patches, miscommunications from vendors and patch bypasses. In 2021, there were 21,957 common vulnerabilities and exposures (CVEs) reported, representing a 19.6% increase over the 18,358 reported in 2020 and a 241% increase over the 6,447 disclosed in 2016. From 2016 to 2021 the number of CVEs increased at an average annual percentage growth rate of 28.3%.

Throughout the year, Tenable’s Security Response Team tracks and reports on vulnerabilities and security incidents, providing guidance to security professionals as they plan their response strategies. The team’s work gives them the opportunity to closely observe the ever-changing dynamics of the threat landscape. 

The full report is available for download, with key stats and nine top takeaways summarized on pages 4-5. A webinar hosted by Tenable’s Security Response Team to discuss these findings will take place on Tuesday February 1 at 2pm ET.

Notes to editors:

* 87% of breach disclosures analyzed by Tenable’s Security Response Team did not include any information on the number of records exposed, meaning this figure will be significantly higher.

Report methodology — the TLR report is compiled based on analysis of events throughout 2021, including:

  • Information contained in advisories published by international government agencies, vendors and researchers.
  • Breach data is compiled using publicly available information from national and local news outlets reporting on data breaches from November 2020 through October 2021.
  • The common vulnerability scoring system (CVSS) scores are derived from the National Institute of Standards and Technology’s (NIST) National Vulnerability Database (NVD).

About Tenable
Tenable®, Inc. is the Cyber Exposure company. Over 30,000 organizations around the globe rely on Tenable to understand and reduce cyber risk. As the creator of Nessus®, Tenable extended its expertise in vulnerabilities to deliver the world’s first platform to see and secure any digital asset on any computing platform. Tenable customers include more than 50 percent of the Fortune 500, more than 30 percent of the Global 2000 and large government agencies. Learn more at www.tenable.com.

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Contact Information:
Tenable
[email protected]

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