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Amr Abumady

Building ClientN Shield — privacy-first authentication. Sign in anywhere, share nothing. https://clientn.com

Joined on Mar 19, 2026

Oct 9

QR-code login can be phished. Here is how we closed the hole

#security #webdev #authentication #privacy

4 min read

Oct 6

Hashed Emails Aren't Anonymous: Use Pairwise IDs Instead

#privacy #security #webdev #authentication

2 min read

Sep 29

Passkey Sign-In for a Small Site Without Storing Emails: The 5 Server Steps

#passkeys #security #webdev #privacy

4 min read

Sep 22

What Google's €403M and $463M Fines Actually Mean for Your Login Table

#privacy #webdev #security #authentication

2 min read

Sep 13

What the Revolut Breach Says About Storing Identity Documents Forever

#privacy #security #identity #webdev

3 min read

Sep 4

Why websites replaced passwords with sign-in codes — and what comes after

#privacy #security #webdev #authentication

3 min read

Mar 19

ClientN Shield: Privacy-First Authentication for the Modern Web

#privacy #security #webdev #opensource

1 min read

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