Kirill Abrams

Kirill Abrams's personal blog

Founder & CEO, UmbrellaX TOO

This is where I write about end-to-end encryption, post-quantum cryptography, jurisdictional risk, and the design decisions behind UmbrellaX. Personal opinions, not press releases.

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Jurisdiction Metadata briefings

I collect UmbrellaX analysis on jurisdiction metadata here, with source-backed context and links to the most useful related articles.
Abstract constellation of message metadata points around an encrypted message block.
Metadata

Private messenger metadata: what E2EE hides

A founder's guide to private messenger metadata: what encryption does not hide, why logs matter, and how UmbrellaX reduces operator knowledge.

May 26 pillar 5 min New