IT services company Cognizant, on April 18, confirmed that it has been hit by a Maze ransomware attack, which has caused "service disruptions” for some of its clients. The company has not revealed the details about the security incident, but said that its internal security teams and other cyber defence firms are trying to “contain the incident”. The company also said that it was engaging with the law enforcement. Bleeping Computer had first reported about the ransomware attack on Cognizant. Cognizant predicts a revenue loss: In a filing with the US’ Securities and Exchange Commission (SEC), the company said that “the attack has caused and may continue to cause an interruption in parts of our business and may result in a loss of revenue and incremental costs that may adversely impact our financial results”. TechCrunch first reported on Cognizant’s SEC filing. It had emailed clients with technical information about the attack: Cognizant claimed to have provided its clients with Indicators of Compromise (IOCs) and other technical information of a “defensive nature”. According to Bleeping Computer, the emails sent out by Cognizant to its clients included a "preliminary list of indicators of compromise identified through our investigation”, and IP addresses of servers, among other things. What is a Maze ransomware attack? Maze operators use RSA-2048 and ChaCha20 encryption and require the victim to contact the threat actor by email for the decryption key. The threat actors behind the malware are known to have attacked multiple sectors including government and manufacturing and threaten to release the company's…
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