Callie Guenther

Whether it’s manufacturing, energy, or healthcare, many of these systems run legacy equipment by necessity – here’s how to keep them secure.

Here’s a primer on why critical infrastructure systems based on OT are vulnerable – and five ways to mitigate attacks.

Here’s a primer on this year’s leading malware threats – and what to do about them.

Attackers do the most damage exploiting weak passwords and companies that don’t deploy MFA – so start with the cyber basics and apply new technologies as needed.

Five ransomware gangs dominated the landscape in 2024 – here’s how to keep them at bay.

Attacks on ESXi servers are coming fast and furious – here’s how to stop them.

Here’s seven tips that offer short-term and long-term fixes following the CrowdStrike outage.

Here’s what to tell top management about how malware analysis helps security teams protect their companies.

In Part 2 of this series on emerging threats, Critical Start’s Callie Guenther explores a six-point strategy for responding to threats posed by AI.

In the first part of a two-part series on emerging cybersecurity trends, SC Media columnist Callie Guenther explains the five leading AI-based threats facing all security teams.