Geizhals (at.geizhals.pv): Privacy & Security Findings

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Permanent Disclosure Ledger

The discipline, demonstrated

On behalf of our research partners, we investigate publicly distributed Android and iOS apps: we decompile them, follow their code and data flows, and trace every connection to the servers it reaches. Hundreds of agents work through each app and join the technical evidence into one picture, which our specialists then review and verify.

387+
Android/iOS apps audited
Every app is decompiled at source-code level, not just scanned from outside.
1.04M+
Smali classes read
The full shipped code we have actually read, not an estimate.
262+
Critical findings recorded
Confirmed findings copied to regulators, not theoretical risks.
970+
Weak points found
Third-party tracking we have provably found inside the binary.
567+
Endpoints investigated
Real servers and countries where data actually flows.
132+
SDK instances mapped
Reusable libraries correlated across the entire corpus.
1 of 387 entries · sorted by elapsed ↓
Showing the report for Geizhals.
OrganisationNotifiedStatusSevIntel (click to expand)StatutesResolvedDisclosureElapsedReport
Geizhals
Private
2026-06-26
91d ago
Silent
Medium
Tracking code starts running the instant you open the app, before you have even seen the consent prompt, and separately the app reads a permanent ID number burned into your phone's hardware and sends it to Geizhals's own servers labeled as a fingerprint, an identifier that survives even if you delete the app or clear its data. Across seven messages over more than two months, nobody at Geizhals ever replied.
at.geizhals.pv v3.13.0. All seven findings re-scored under CVSS v4.0, all six re-scored findings correct to MEDIUM on their own computed bands: pre-consent FacebookInitProvider + 2x FirebaseInitProvider SDK auto-init, Settings.Secure.ANDROID_ID permanent device fingerprint read and transmitted as request_fingerprint to api.geizhals.net with no legal basis, four hardcoded Google API keys, RECEIVE_BOOT_COMPLETED background processing before the app is opened, and all four undisclosed Privacy Sandbox APIs (TOPICS, CUSTOM_AUDIENCE, AD_ID, ATTRIBUTION). Disproportionate fine-location access for a store-locator feature corrects to LOW. Seven messages sent across 78 days to info@/presse@/webmaster@geizhals.at; not one reply of any kind was ever received. Case closed and published 2026-09-25, one day after the stated 2026-09-24 embargo.
click to expand
GDPR Art. 7GDPR Art. 32(1)GDPR Art. 7+1
Yes
Closed
Disclosure
91d 00h 00m 00s
Published
PDF

This ledger is updated in real time as companies respond. Silence is public. Severity is scored primarily by CVSS v4.0, we reserve the right to deviate based on blast radius.