Threat intelligence from 2026 has confirmed something defenders have feared for a while: attackers are now moving faster than most security teams can react. In some intrusions, criminals have been observed breaking into a network and spreading laterally to other systems in under 30 seconds. When the window between initial access and full compromise is that small, the old model of “detect, investigate, then respond” simply does not keep up.

Three trends driving the acceleration

Several forces are combining to compress attack timelines:

• AI-assisted attacks. Automation and machine learning are helping attackers find weaknesses, craft convincing lures, and chain steps together with far less manual effort.
• Faster zero-day exploitation. Newly disclosed vulnerabilities are being weaponised almost immediately. In 2026, Cisco warned of an actively exploited zero-day in its Catalyst SD-WAN Manager (CVE-2026-20245) that allowed attackers to escalate to root privileges before a patch was available.
• Trusted tools turned against you. Researchers demonstrated a one-click attack through Microsoft Visual Studio Code capable of stealing a developer’s GitHub token – handing attackers read and write access to private repositories. The supply chain often starts on a developer’s laptop.

Speed has to be met with speed

If lateral movement happens in seconds, then prevention and automated containment matter more than manual investigation. The goal is to make an attacker’s first foothold as useless as possible and to limit how far it can spread.

• Segment aggressively. Network segmentation and least-privilege access mean a single compromised account or device does not open the whole estate.
• Shrink your patch window. When exploitation follows disclosure within hours, patch velocity is a security control in its own right. Prioritise internet-facing and privileged systems.
• Automate response. Detection that can isolate a host or revoke a token automatically – without waiting for a human – is the only thing fast enough to matter.
• Protect developer identities. Tokens, keys, and CI/CD credentials deserve the same care as user passwords, with short lifetimes and tight scopes.

Closing the gap with Data Mammoth

You cannot out-type an automated attacker, but you can make sure a 30-second intrusion goes nowhere. Data Mammoth helps organisations design segmented, least-privilege environments, keep patching ahead of exploitation, and put automated detection and response in place – so the moment something goes wrong, your systems are already reacting.

Assess your defences

Related services: Application Security and Managed IT Services.