The ShinyHunters extortion gang claims it is behind a wave of ongoing voice phishing attacks targeting single sign-on (SSO) accounts at Okta, Microsoft, and Google, enabling threat actors to breach corporate SaaS platforms and steal company data for extortion. [...]

https://www.bleepingcomputer.com/news/security/shinyhunters-claim-to-be-behind-sso-account-data-theft-attacks/