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

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

Fintech software firm Finastra is warning its customers a recent data breach may have meant it recently lost some data. Security researcher Brian Krebs obtained a copy of the letter sent to affected individuals, which says the breach was not the result of an exploited vulnerability, but rather the result of stolen credentials.

Finastra, a London-based financial software company that serves most of the world’s top banks, has confirmed it’s investigating a data breach after a hacker claimed a compromise of the company's internal file-transfer platform.