WASHINGTON - A Chinese hacking group exploited a software bug to compromise several internet companies in the U.S. and abroad, a cybersecurity firm said on Tuesday.
Versa Networks issued an advisory on Monday acknowledging that the vulnerability had been exploited "in at least one known instance" by an advanced group of hackers, and urged customers to upgrade their software to fix the bug. The Chinese Embassy in Washington did not immediately respond to a request seeking comment, although Beijing routinely denies allegations of its involvement in cyberespionage. U.S. officials did not immediately respond to a request for comment but on Friday the U.S. Cybersecurity and Infrastructure Security Agency added the Versa vulnerability to its list of "known exploited vulnerabilities.
Volt Typhoon has emerged as a group of particular concern to U.S. cybersecurity officials. In April, FBI Director Christopher Wray said China was developing the "ability to physically wreak havoc" on U.S. critical infrastructure and that Volt Typhoon had burrowed into numerous U.S. telecommunications, energy, water and other critical services companies.
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