I'm guessing you've just uploaded your crypto wallet? It's generally good practice to encrypt sensitive files first before uploading with something like GPG or Cryptomator, no online storage service is 100% safe and it depends entirely on your threat model on what you consider "safe".
CLI and local web plain text note‑taking, bookmarking, and archiving with linking, tagging, filtering, search, Git versioning & syncing, Pandoc conversion, + more in a single portable script.
Miniflux, prior to that it was Feedly for a number of years, but I eventually opted for a self-hosted solution and it does the job well alongside Reeder for iOS. Some people may find it lacking in features however.