This website is currently being reformed, and hence unstable.

Security

Security is one of my top concerns. If you found any security vuneralibilities in my contents, please let me know using PGP encryption following the steps as below.

Thank you for your cooperation.

How to send me a message in a secure manner?

When you send me a confidential message like vulnerabilities in a highly secure manner, please follow the following steps.

  1. Encrypt message with my PGP key (fingerprint: EB3601955F653CF033634EF1F33EE26CADC5DBE4). You need to verify the key before importing it.
  2. Message should include your public key or its fingerprint (if it's available on key server) so that I can reply to you in a secure manner as well.
  3. Send the encrypted message via email (cosnomi@cosnomi.com) or other private messaging service.
  4. If I don't acknowledge your message for more than one week, please mention me on public SNS (Twitter, Fediverse, etc.) Then my acquaintance should let me know. Don't post the raw message in a public place.

It might be such a burden, but encryption is literally the key to protect our secret.