Here’s the technical analysis linked commissioned by the consumer council when building the case : <a href="https://storage02.forbrukerradet.no/media/2020/01/mnemonic-security-test-report-v1.0.pdf" rel="nofollow noreferrer">https://storage02.forbrukerradet.no/media/2020/01/mnemonic-s...</a><p>(Disclosure: I work for mnemonic, the company that performed the report, although I joined later)