Viasat Identified as Victim in China-Linked ‘Salt Typhoon’ Hack

Viasat Inc. is the latest US communications company identified as a victim of the sweeping surveillance hack blamed on the Chinese government that emerged during last year’s presidential campaign, according to people familiar with the matter.

The breach of the California-headquartered satellite and wireless networking company was discovered earlier this year and Viasat has been working with the government in the aftermath, some of the people said. Verizon Communications Inc.,AT&T Inc. and Lumen Technologies were previously identified as being hit by the attack.

The surveillance campaign, run by a group that Microsoft Corp. dubbed “Salt Typhoon,” was one of ...