Daily US Times: About 200 US businesses have been hit by a “colossal” cyber-attack, according to Huntress Labs, a cyber-security firm.
Huntress Labs said the ransomware attack targeted Florida-based IT company Kaseya before spreading through corporate networks that use its software.
In a statement on its own website, Kaseya said that it was investigating a “potential attack”.
Huntress Labs said it believed the Russia-linked REvil ransomware gang was responsible for the latest attack.
The US Cybersecurity and Infrastructure Agency said in a statement that it was taking action to address the attack.
The cyber-attack emerged on Friday afternoon as companies across the United States were clocking off for the long Independence Day weekend.
Kaseya said one of its applications that runs corporate servers, network devices, desktop computers might have been compromised.
The company said it was urging customers that use its VSA tool to immediately shut down their servers.
In its statement, Kaseya said that a “small number” of companies had been affected, though Huntress Labs said the number is already about 200 and counting.
It is unclear what specific companies have been affected.
Kaseya’s website says it has a presence in more than 10,000 customers in over 10 countries.
Huntress Labs’ senior security researcher John Hammond said in an email to Reuters news agency: “This is a colossal and devastating supply chain attack.”
Last month, at a summit in Geneva, President Joe Biden said he told Russian President Vladimir Putin he had a responsibility to rein in such cyber-attacks.