Lateral movement lets attackers reach more systems after entry; network segmentation, least privilege, and monitoring can limit its impact.
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Background for this topic.
Lateral movement is an attacker’s progress from an initially compromised device or account to other systems, accounts, or network segments. It commonly uses stolen credentials, remote administration services, shared drives, exposed management interfaces, or vulnerabilities. The objective may be to reach higher-value assets, obtain greater privileges, or establish access that supports data theft or disruption. Because these actions can resemble normal administration, a single endpoint compromise can become a broader intrusion without clear perimeter breaches.
The most relevant defenses limit both reach and credential reuse: segment networks and sensitive environments, apply least privilege, require strong authentication for administrative access, and remove unnecessary remote services. Monitor authentication patterns, new administrative relationships, unusual remote execution, and access between systems that rarely communicate; correlate these signals with endpoint and identity telemetry. Rapidly disabling compromised accounts, isolating affected hosts, and rotating exposed credentials can contain movement, while vulnerability management reduces exploitable paths that bypass authentication.
Weekly headline count for the current query.
So many CVEs, so little time Digital intruders exploited buggy SolarWinds Web Help Desk (WHD) instances in December to break into victims' IT environments, move laterally, and steal high-privilege credentials, according to Microsoft researchers.…
Cloud-native, 37 plugins … an attacker's dream A brand-new Linux malware named VoidLink targets victims' cloud infrastructure with more than 30 plugins that allow attackers to perform a range of illicit activities, from silent reconnaissance and credential theft to lateral movement and container abuse. …
Ukraine first to deploy open source security platform to isolate incidents, stop lateral movement Feature It was a sunny morning in late April when a massive power outage suddenly rippled across Spain, Portugal, and parts of southwestern France, leaving tens of millions of people without electricity for hours.…
Bad kitty, no catnip for you Here's a heads up. Another version of BlackCat ransomware has been spotted extorting victims. This variant embeds two tools, we're told: the network toolkit Impacket for lateral movement within compromised environments, and Remcom for remote code execution.…
Our Vectra Masked CISO series tackles some of the biggest issues in security and how to overcome them Advertorial Security must be tried, tested, and tested again. It’s become easier than ever for cybercriminals to find stealthy new ways to gain access to and navigate laterally across systems, exploit gaps in hybrid workflows, or hijack cloud accounts to gain access to a target. It is vital that every CISO can offer a clear picture of how their security is really holding up against the latest tactics, techniques, and procedures. However, all too often I’ve seen my fellow CISOs fall into a cycle of preparing annual penetration tests of point systems to be “compliant,” which in fact only makes them sitting ducks just waiting for a breach to occur.…