The U.S. Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency (CISA) earlier today issued a warning to all industries operating critical infrastructures about a new ransomware threat that if left unaddressed could have severe consequences.
The advisory comes in response to a cyberattack targeting an unnamed natural gas compression facility that employed spear-phishing to deliver ransomware to the company’s internal network, encrypting critical data and knocking servers out of operation for almost two days.
“A cyber threat actor used a spear-phishing link to obtain initial access to the organization’s information technology network before pivoting to its operational technology network. The threat actor then deployed commodity ransomware to encrypt data for impact on both networks,” CISA noted in its alert.
As ransomware attacks continue to escalate in frequency and scale, the new development is yet another indication that phishing attacks continue to be an effective means to bypass security barriers and that hackers don’t always need to exploit security vulnerabilities to breach organizations.
CISA highlighted that the attack did not impact any…