Finastra, a global leader in financial technology that serves 45 of the world’s top 50 banks, has confirmed a major data breach.

A February data breach involving 122 million records of marketing data has been confirmed to have come from B2B data broker DemandScience.

Finastra has confirmed it warned customers of a cybersecurity incident after a threat actor began selling allegedly stolen data on a hacking forum.

An incident disclosure shared with Finastra's banking and financial customers confirms a hacker stole files from a company system.

Finastra says it is investigating which institutions might have had data compromised.