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Zurich, Switzerland

Software engineer

I build and operate data infrastructure for open protocols. BigBrotr combines verified event archiving with active relay health and uptime monitoring. I own its implementation, storage and recovery mechanisms, and self-hosted operations.

Selected projects

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2025

Hard to See, Harder to Block: Exploring the Challenges in Email Tracking Pixels Detection

IEEE Access

Federico Cernera, Vincenzo Imperati, Massimo La Morgia, Alessandro Mei, Alberto Maria Mongardini, Eugenio Nerio Nemmi, Luciano Ortenzi, Francesco Sassi

2025

The Conspiracy Money Machine: Uncovering Telegram's Conspiracy Channels and their Profit Model

USENIX Security 2025

Vincenzo Imperati, Massimo La Morgia, Alessandro Mei, Alberto Maria Mongardini, Francesco Sassi

Changing a specification is mostly a migration problem

The NIP-54 format migration shows how an implementation tool can address a reviewer's compatibility concern and make a specification change easier to adopt.

A duplicate can be an observation

BigBrotr's earlier PostgreSQL schema separates event identity from relay observations, showing why deduplication must preserve where a record was seen.

An index must preserve the specification's distinctions

A Nostr storage backend returned the wrong rows because its index kept tag values but discarded tag keys, collapsing a distinction required by the protocol.