Israel and Mobile Phone Data: Some Hypotheticals
March 19, 2020
DarkCyber spotted a story in the New York Times: “Israel Looks to Repurpose a Trove of Cell Phone Data.” The story appeared in the dead tree edition on March 17, 2020, and you can access the online version of the write up at this link.
The write up reports:
Prime Minister Benjamin Netanyahu of Israel authorized the country’s internal security agency to tap into a vast , previously undisclosed trove of cell phone data to retract the movements of people who have contracted the corona virus and identify others who should be quarantined because their paths crossed.
Okay, cell phone data. Track people. Paths crossed. So what?
Apparently not much.
The Gray Lady does the handwaving about privacy and the fragility of democracy in Israel. There’s a quote about the need for oversight when certain specialized data are retained and then made available for analysis. Standard journalism stuff.
DarkCyber’s team talked about the write up and what the real journalists left out of the story. Remember. DarkCyber operates from a hollow in rural Kentucky and knows zero about Israel’s data collection realities. Nevertheless, my team was able to identify some interesting use cases.
Let’s look at a couple and conclude with a handful of observations.
First, the idea of retaining cell phone data is not exactly a new one. What if these data can be extracted using an identifier for a person of interest? What if a time-series query could extract the geolocation data for each movement of the person of interest captured by a cell tower? What if this path could be displayed on a map? Here’s a dummy example of what the plot for a single person of interest might look like. Please, note these graphics are examples selected from open sources. Examples are not related to a single investigation or vendor. These are for illustrative purposes only.
Source: Standard mobile phone tracking within a geofence. Map with blue lines showing a person’s path. SPIE at https://bit.ly/2TXPBby
Useful indeed.
Second, what if the intersection of two or more individuals can be plotted. Here’s a simulation of such a path intersection:
Source: Map showing the location of a person’s mobile phone over a period of time. Tyler Bell at https://bit.ly/2IVqf7y
Would these data provide a way to identify an individual with a mobile phone who was in “contact” with a person of interest? Would the authorities be able to perform additional analyses to determine who is in either party’s social network?
Third, could these relationship data be minded so that connections can be further explored?
Source: Diagram of people who have crossed paths visualized via Analyst Notebook functions. Globalconservation.org
Can these data be arrayed on a timeline? Can the routes be converted into an animation that shows a particular person of interest’s movements at a specific window of time?
Source: Vertical dots diagram from Recorded Future showing events on a timeline. https://bit.ly/39Xhbex
These hypothetical displays of data derived from cross correlations, geotagging, and timeline generation based on date stamps seem feasible. If earnest individuals in rural Kentucky can see the value of these “secret” data disclosed in the New York Times’ article, why didn’t the journalist and the others who presumably read the story?
What’s interesting is that systems, methods, and tools clearly disclosed in open source information is overlooked, ignored, or just not understood.
Now the big question: Do other countries have these “secret” troves of data?
DarkCyber does not know; however, it seems possible. Log files are a useful function of data processes. Data exhaust may have value.
Stephen E Arnold, March 19, 2020
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