A look at surveillance apps Shadowtrack and SmartLink, which are used by states and ICE as parole apps replacing GPS ankle bracelets
Todd Feathers / The Guardian : Tweets: @migradetention and @hypervisible Tweets: @migradetention : “It is not a substitute for detention, but allows ICE to exercise increased supervision over a portion of those who are not detained.” @ToddFeathers investigates the use of the Shadowtrack app in 🇺🇸, and its creation of ‘digital prisoners’ https://www.theguardian.com/ ... @hypervisible : A look at the apps and devices that are often termed “e-carceration.” “...often it's people of colour who are having their data extracted from them. This valuable commodity is literally the body of black individuals.” https://www.theguardian.com/ ...
Context & Ripple Effects
Todd Feathers' investigation lands early in a paper trail that has since grown substantial: within a year of this piece, privacy advocates documented how SmartLINK helped ICE scale its supervised population from under 6,000 to more than 230,000 people in three years ([[a:980307]]), and the EFF audited 16 ankle-monitor-replacement apps and found broad data access, third-party trackers, and unreliability across the category ([[a:983162]]).
The article also names the business model behind the shift: private prison operators are no longer selling only beds and bracelets but software subscriptions, with Geo Group building a lucrative line of watches and tracking apps for ICE ([[a:884610]]). What reads here as an emerging practice is, in hindsight, the template for what advocates call e-carceration.
First-order effects
- Parolees released from custody must now carry a personal smartphone running Shadowtrack or SmartLINK, trading a physical shackle for constant check-ins, location pings, and biometric submission on their own device.
- ICE gains a way to supervise non-detained immigrants far beyond what GPS anklets allowed, since the apps ride on hardware the government does not have to issue or maintain.
Second-order effects
- App failures become detention risks: as parolees reported with the earlier Guardian tracking app, glitches and false negatives can cost people jobs and send them back into custody ([[a:953064]]), so reliability is not a UX problem but a liberty problem.
- Vendors follow the money — Geo Group's pivot from facilities to tracking software shows incarceration companies converting supervision mandates into recurring software revenue, and the EFF's finding of third-party trackers inside these apps means commercial ad-tech rides along on state-mandated installs.
Third-order effects
- If the pattern holds, the condition of release becomes a data-extraction relationship: the tracked population expands (as SmartLINK's growth shows) while the same bodies generate commercially valuable behavioral data, falling disproportionately on people of colour as the reporting notes.
- Regulators face a governance gap the EFF audit crystallized — consumer-grade apps performing state coercion sit outside both consumer-privacy norms and correctional oversight, forcing a choice about which framework, if either, governs them.
The trend: Immigration and parole supervision is migrating from government-issued hardware to mandated smartphone apps, expanding who can be monitored while outsourcing the infrastructure — and the data flows — to private vendors.