Ransomware and the IBM z/OS Mainframe, Big Iron by Paul F. Renda

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Ten years ago, I would have said that it's impossible for a mainframe to become infected with ransomware. Today, I no longer feel so confident, having read a number of articles about methodologies for how such an infection could take place.  IBM’s modern mainframe series started with the 360 up to its current Z series. Mainframes are not dying; according to IBM, they still process over 70% of online transactions1. According to DevOps.com, “One mainframe can process 2.5 billion transactions in a single day, which is the equivalent of handling 100 Cyber Mondays”2. Mainframes remain the backbone of processing for banks and insurance companies; although some people have the misconception that mainframe technology is obsolete, IBM is continuing to develop it. The IBM z/OS version 14 mainframe now enables pervasive encryption without any application changes. Ransomware history Ransomware is a type of malware that encrypts computer files. The decryption key is....

March 22, 2022
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4 months ago

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