Risky Bulletin Newsletter
April 20, 2026
Risky Bulletin: New malware tries to sabotage Israel's water system but fails because it's buggy
Presented by
News Editor
Security researchers at British security firm Darktrace have found a new and interesting piece of malware that was specifically designed to infect and sabotage the operations of Israel's national water management network.
Named ZionSiphon, the malware is one of the rare malware strains created to target operational technology (OT), which are the type of networks from which staff manage industrial equipment.
The malware is a very targeted operation that only works inside networks hosted on Israeli IP address ranges and where the malware finds specific text strings containing the names of common Israeli companies that manage water treatment and desalination systems.