sesi.org.br

sesi.org.br was compromised in a ransomware attack attributed to lockbit5 in March 2026. The organization, operating in the Education sector in Brazil, was added to the group's data leak site as part of an extortion campaign.

lockbit5 operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.

SESI provides quality education, health, and cultural services aimed at improving the quality of lif...