Hackers are demanding a ransom $ 70 million

The group allegedly behind the hacking attack on an IT company in the United States is demanding a ransom of $ 70 million. Then data should be released again, the group called "REvil" posted on their blog. An expert from cybersecurity firm Recorded Future said the entry appeared to be real. The group has been running the blog since last year. In one of the largest blackmailing hacker attacks in recent years, thousands of companies worldwide may have been paralyzed since Friday afternoon. The hacker group "REvil" is suspected of having hijacked the desktop management tool VSA from Kaseya and installed a malicious update that infected thousands of customers of the US tech management provider. Entire accounting systems were blocked by the hacker's encryption. The attack had and continues to have effects as far as Europe. According to the Federal Office for Information Security (BSI), thousands of computers in Germany are also affected. The supermarket chain Coop Sweden had to close 800 branches on Saturday because the checkout system failed. The VSA software from Kaseya was manipulated "to encrypt more than 1000 companies," said the cybersecurity consulting firm Huntress Labs on Saturday. The cyber attack occurred before the weekend that the United States celebrates Independence Day. Kaseya itself confirmed the attack and assured on Saturday that the attack had been contained, so that only a "very small percentage" of the customers who used the so-called VSA network was affected. When attacking with ransomware, hackers lock or encrypt the computer systems of their victims in order to extort money from the users for the release of their data.