Klarna: 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 Klarna.
OrganisationNotifiedStatusSevIntel (click to expand)StatutesResolvedDisclosureElapsedReport
Klarna
Private
2026-06-20
91d ago
Escalated
Critical
Klarna's banking app leaves a debugging tool active that logs your credit applications and identity checks in plain readable text, records every tap on payment screens to a US company, and sends a scan of your face and ID to a separate US company. When raised, Klarna redirected twice to its bug-bounty program, then closed the case without answering whether the recordings were active.
Chucker debug interceptor logs credit applications, bank-linking, and KYC traffic in plaintext on-device. FullStory records every tap on payment and debt screens to US servers. Persona KYC sends facial biometrics and government ID to a US company. Klarna redirected to its bug-bounty program twice, then declared the matter closed.
click to expand
GDPR Art. 32GDPR Art. 13GDPR Art. 32(1)(b)+3
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.