Users can lock their notes with a password in Memono version 3.8. Thus, users needs to know a password to read notes. However, these notes are stored in a database without encryption and an attacker can read the password-protected notes without having the password. Notes are stored in the ZENTITY table in the memono.sqlite database.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-11826
• https://fatihhcelik.blogspot.com/2020/02/memono-insecure-data-storage-ios.html