A Partita IVA is an Italian VAT registration number used by freelancers, sole traders, and companies for billing, tax reporting, and collecting payments. In practice, it identifies the business entity behind invoices, bank transfers, and electronic tax filings.
In cybersecurity, Partita IVA matters because it often sits at the center of business workflows. Attackers who obtain access to an email account, invoicing tool, or business banking portal may use that identity to send fake invoices, redirect payments, or submit fraudulent tax actions. Defenders treat it as part of a wider trust chain: protect the login behind it with strong authentication, verify payment recipients, monitor invoice changes, and separate personal from business access wherever possible.