"On Wednesday, large chunks of network traffic belonging to MasterCard, Visa, and more than two dozen other financial services companies were briefly routed through a Russian government-controlled telecom under unexplained circumstances that renew lingering questions about the trust and reliability of some of the most sensitive Internet communications."
https://arstechnica.com/security/2017/04/russian-controlled-telecom-hijacks-financial-services-internet-traffic/
