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News
CISA tells operators to harden Siemens S7 PLCs. Here’s how to do it without disrupting production
4+ day, 11+ hour ago (751+ words) On a conventional server, disabling an unused service is usually a routine hardening task. On a Siemens S7 controller, the supposedly unused service may carry remote I/O traffic, supply process values to an HMI or provide the maintenance team’s only…...
Nucleus wants to get ahead of scanners on new vulnerabilities
2+ week, 4+ day ago (518+ words) There usually is a crucial time lapse from when a vulnerability is newly disclosed to when security scanners are finally updated to scan for it. Nucleus Security says it wants to close that gap. The cybersecurity outfit focused on unified…...
Citrix issues critical security updates for its NetScaler devices
3+ week, 2+ day ago (520+ words) Citrix is urging its NetScaler ADC and NetScaler Gateway customers to quickly patch two critical security holes, one involving a memory overflow vulnerability leading to unpredictable behavior or denial of service, and the other allowing authentication bypass. Citrix said in…...