Matthew Green

Stories

X builds toward a Western super app, one standalone product at a time

As of May 2026: Leading academic critic of XChat's encryption architecture

Elon Musk spent $44 billion to buy Twitter in October 2022, telling investors it was 'an accelerant to creating X, the everything app.' Three and a half years later, that app is still taking shape—haltingly.

Updated May 31

Notable Quotes

"If we judge XChat as an end-to-end encryption scheme, this seems like a pretty game-over type of vulnerability." — Blog post, June 2025

from X builds toward a Western super app, one standalone product at a time · Updated May 31

"For the moment, until it gets a full audit by someone reputable, I would not trust this any more than I trust current unencrypted DMs." — To TechCrunch

from X builds toward a Western super app, one standalone product at a time · Updated May 31