NSO Group’s Unsecured Contact-Tracing Database Raises Major Privacy Concerns

As nations gradually reopen after COVID-19 lockdowns, contact-tracing apps have emerged as critical tools for tracking the virus’s spread. While many governments adopt privacy-focused Bluetooth-based solutions, Israel has taken a different approach by utilizing cell phone location data—with controversial implications.

The NSO Group Controversy

Israeli cybersecurity firm NSO Group, notorious for developing advanced mobile surveillance tools, has been spearheading one of Israel’s contact-tracing initiatives. Recently, security researcher Bob Diachenko uncovered an alarming security lapse: one of NSO’s contact-tracing databases was left completely unprotected on the internet, accessible to anyone without a password.

Key Findings:

  • The exposed database contained approximately six weeks of location data (March 10–April 23)
  • Data included timestamps, locations, and encounter durations for “targets” (potential COVID-19 contacts)
  • NSO claims the data was dummy information for demonstration purposes

After Diachenko’s discovery, NSO quickly took the database offline but denied any security failure, stating the system was intentionally open for transparency.

Inside the ‘Fleming’ System

Developed under the codename “Fleming,” NSO’s contact-tracing platform aims to:

  1. Integrate confirmed COVID-19 test results from health authorities
  2. Combine with cellular location data to identify potential exposures
  3. Notify individuals who may have encountered infected persons

Privacy Experts Sound Alarms

John Scott-Railton of Citizen Lab (University of Toronto) criticized the security oversight:

“Not securing a server would be an embarrassment for a school project. For a billion-dollar company to not password protect a project handling location and health data suggests a rushed, careless implementation.”

Israel’s Dual Tracking Approach

Israel has implemented two distinct contact-tracing systems:

  1. Shin Bet System: Grants security services access to cellular data through emergency laws
  2. NSO’s Fleming: A separate initiative awaiting government approval

Privacy expert Tehilla Shwartz Altshuler (Israel Democracy Institute) revealed NSO initially used advertising-derived location data to train its system—raising additional concerns about data sourcing and accuracy.

Global Implications and Data Concerns

The unprotected database contained location data points from:

  • Israel
  • Rwanda
  • Saudi Arabia
  • United Arab Emirates

This discovery fuels existing concerns about NSO’s relationships with governments known for surveillance activities. The company has faced previous allegations regarding:

  • Potential involvement in Jeff Bezos’s phone hack
  • Legal battles with WhatsApp over spyware allegations

The Centralized Data Debate

Most countries favor decentralized contact-tracing (like Apple/Google’s Bluetooth-based system) over centralized location tracking due to:

  • Reduced privacy risks
  • Lower vulnerability to hacking
  • Prevention of mass surveillance capabilities

Alan Woodward (University of Surrey) warned:

“Location data enables building social graphs—identifying who met whom, when, and where. Even trial data remains sensitive if it involves real people.”

As governments balance public health needs with privacy rights, the NSO incident serves as a stark reminder of the risks inherent in rushed, centralized tracking systems.


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